Convert MediaLog from being ref counted to owned by WebMediaPlayer.

media/filters/source_buffer_stream.cc

 // Copyright (c) 2012 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/filters/source_buffer_stream.h"
 
 #include <algorithm>
 #include <map>
 #include <sstream>
 #include <string>
@@ skipping 121 matching lines @@
       return SourceBufferRange::ALLOW_GAPS;
   }
 
   NOTREACHED();
   return SourceBufferRange::NO_GAPS_ALLOWED;
 }
 
 }  // namespace
 
 SourceBufferStream::SourceBufferStream(const AudioDecoderConfig& audio_config,
-                                       const scoped_refptr<MediaLog>& media_log)
+                                       MediaLog* media_log)
     : media_log_(media_log),
       seek_buffer_timestamp_(kNoTimestamp),
       coded_frame_group_start_time_(kNoDecodeTimestamp()),
       range_for_next_append_(ranges_.end()),
       last_output_buffer_timestamp_(kNoDecodeTimestamp()),
       max_interbuffer_distance_(kNoTimestamp),
       memory_limit_(kSourceBufferAudioMemoryLimit) {
   DCHECK(audio_config.IsValidConfig());
   audio_configs_.push_back(audio_config);
 }
 
 SourceBufferStream::SourceBufferStream(const VideoDecoderConfig& video_config,
-                                       const scoped_refptr<MediaLog>& media_log)
+                                       MediaLog* media_log)
     : media_log_(media_log),
       seek_buffer_timestamp_(kNoTimestamp),
       coded_frame_group_start_time_(kNoDecodeTimestamp()),
       range_for_next_append_(ranges_.end()),
       last_output_buffer_timestamp_(kNoDecodeTimestamp()),
       max_interbuffer_distance_(kNoTimestamp),
       memory_limit_(kSourceBufferVideoMemoryLimit) {
   DCHECK(video_config.IsValidConfig());
   video_configs_.push_back(video_config);
 }
 
 SourceBufferStream::SourceBufferStream(const TextTrackConfig& text_config,
-                                       const scoped_refptr<MediaLog>& media_log)
+                                       MediaLog* media_log)
     : media_log_(media_log),
       text_track_config_(text_config),
       seek_buffer_timestamp_(kNoTimestamp),
       coded_frame_group_start_time_(kNoDecodeTimestamp()),
       range_for_next_append_(ranges_.end()),
       last_output_buffer_timestamp_(kNoDecodeTimestamp()),
       max_interbuffer_distance_(kNoTimestamp),
       memory_limit_(kSourceBufferAudioMemoryLimit) {}
 
 SourceBufferStream::~SourceBufferStream() {
@@ skipping 1601 matching lines @@
 
   if (!have_preroll_buffer)
     return false;
 
   pending_buffer_.swap(*out_buffer);
   pending_buffers_complete_ = false;
   return true;
 }
 
 }  // namespace media