Convert MediaLog from being ref counted to owned by WebMediaPlayer.

media/formats/mp4/box_definitions.cc

 // Copyright 2014 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 "media/formats/mp4/box_definitions.h"
 
 #include <memory>
 #include <utility>
 
 #include "base/command_line.h"
@@ skipping 569 matching lines @@
     const AVCDecoderConfigurationRecord& other) = default;
 AVCDecoderConfigurationRecord::~AVCDecoderConfigurationRecord() {}
 FourCC AVCDecoderConfigurationRecord::BoxType() const { return FOURCC_AVCC; }
 
 bool AVCDecoderConfigurationRecord::Parse(BoxReader* reader) {
   return ParseInternal(reader, reader->media_log());
 }
 
 bool AVCDecoderConfigurationRecord::Parse(const uint8_t* data, int data_size) {
   BufferReader reader(data, data_size);
-  return ParseInternal(&reader, new MediaLog());
+  // TODO(wolenetz): Questionable MediaLog usage, http://crbug.com/712310
+  MediaLog media_log;
+  return ParseInternal(&reader, &media_log);
 }
 
-bool AVCDecoderConfigurationRecord::ParseInternal(
-    BufferReader* reader,
-    const scoped_refptr<MediaLog>& media_log) {
+bool AVCDecoderConfigurationRecord::ParseInternal(BufferReader* reader,
+                                                  MediaLog* media_log) {
   RCHECK(reader->Read1(&version) && version == 1 &&
          reader->Read1(&profile_indication) &&
          reader->Read1(&profile_compatibility) &&
          reader->Read1(&avc_level));
 
   uint8_t length_size_minus_one;
   RCHECK(reader->Read1(&length_size_minus_one));
   length_size = (length_size_minus_one & 0x3) + 1;
 
   RCHECK(length_size != 3); // Only values of 1, 2, and 4 are valid.
@@ skipping 855 matching lines @@
 SampleDependsOn IndependentAndDisposableSamples::sample_depends_on(
     size_t i) const {
   if (i >= sample_depends_on_.size())
     return kSampleDependsOnUnknown;
 
   return sample_depends_on_[i];
 }
 
 }  // namespace mp4
 }  // namespace media