Upgrade zlib to 61bddccfbf47b9e6bbce6e39d3f2458e27c58c6a

Test: None
Change-Id: I30abdd531fd89c408316b432d6ea29f5d5011908

2 files changed, 61 insertions, 5 deletions

diff --git a/contrib/minizip/iowin32.c b/contrib/minizip/iowin32.c
index 246ceb9..c6bc314 100644
--- a/contrib/minizip/iowin32.c
+++ b/contrib/minizip/iowin32.c
@@ -31,14 +31,12 @@
 #define _WIN32_WINNT 0x601
 #endif
 
-#if _WIN32_WINNT >= _WIN32_WINNT_WIN8
-// see Include/shared/winapifamily.h in the Windows Kit
-#if defined(WINAPI_FAMILY_PARTITION) && (!(defined(IOWIN32_USING_WINRT_API)))
-#if WINAPI_FAMILY_ONE_PARTITION(WINAPI_FAMILY, WINAPI_PARTITION_APP)
+#if !defined(IOWIN32_USING_WINRT_API)
+#if defined(WINAPI_FAMILY) && (WINAPI_FAMILY == WINAPI_FAMILY_APP)
+// Windows Store or Universal Windows Platform
 #define IOWIN32_USING_WINRT_API 1
 #endif
 #endif
-#endif
 
 voidpf  ZCALLBACK win32_open_file_func  OF((voidpf opaque, const char* filename, int mode));
 uLong   ZCALLBACK win32_read_file_func  OF((voidpf opaque, voidpf stream, void* buf, uLong size));
diff --git a/contrib/tests/utils_unittest.cc b/contrib/tests/utils_unittest.cc
new file mode 100644
index 0000000..6e1f5c9
--- /dev/null
+++ b/contrib/tests/utils_unittest.cc
@@ -0,0 +1,58 @@
+// Copyright 2020 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the Chromium source repository LICENSE file.
+
+#include <cstddef>
+#include <vector>
+
+#include "testing/gtest/include/gtest/gtest.h"
+#include "third_party/zlib/google/compression_utils_portable.h"
+
+#include "zlib.h"
+
+void TestPayloads(size_t input_size, zlib_internal::WrapperType type) {
+  std::vector<unsigned char> input;
+  input.reserve(input_size);
+  for (size_t i = 1; i <= input_size; ++i)
+    input.push_back(i & 0xff);
+
+  // If it is big enough for GZIP, will work for other wrappers.
+  std::vector<unsigned char> compressed(
+      zlib_internal::GzipExpectedCompressedSize(input.size()));
+  std::vector<unsigned char> decompressed(input.size());
+
+  // Libcores's java/util/zip/Deflater default settings: ZLIB,
+  // DEFAULT_COMPRESSION and DEFAULT_STRATEGY.
+  unsigned long compressed_size = static_cast<unsigned long>(compressed.size());
+  int result = zlib_internal::CompressHelper(
+      type, compressed.data(), &compressed_size, input.data(), input.size(),
+      Z_DEFAULT_COMPRESSION, nullptr, nullptr);
+  ASSERT_EQ(result, Z_OK);
+
+  unsigned long decompressed_size =
+      static_cast<unsigned long>(decompressed.size());
+  result = zlib_internal::UncompressHelper(type, decompressed.data(),
+                                           &decompressed_size,
+                                           compressed.data(), compressed_size);
+  ASSERT_EQ(result, Z_OK);
+  EXPECT_EQ(input, decompressed);
+}
+
+TEST(ZlibTest, ZlibWrapper) {
+  // Minimal ZLIB wrapped short stream size is about 8 bytes.
+  for (size_t i = 1; i < 1024; ++i)
+    TestPayloads(i, zlib_internal::WrapperType::ZLIB);
+}
+
+TEST(ZlibTest, GzipWrapper) {
+  // GZIP should be 12 bytes bigger than ZLIB wrapper.
+  for (size_t i = 1; i < 1024; ++i)
+    TestPayloads(i, zlib_internal::WrapperType::GZIP);
+}
+
+TEST(ZlibTest, RawWrapper) {
+  // RAW has no wrapper (V8 Blobs is a known user), size
+  // should be payload_size + 2 for short payloads.
+  for (size_t i = 1; i < 1024; ++i)
+    TestPayloads(i, zlib_internal::WrapperType::ZRAW);
+}