Convert MediaLog from being ref counted to owned by WebMediaPlayer.

media/filters/source_buffer_state.h

 // Copyright (c) 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.
 
 #ifndef MEDIA_FILTERS_SOURCE_BUFFER_STATE_H_
 #define MEDIA_FILTERS_SOURCE_BUFFER_STATE_H_
 
 #include <list>
 
 #include "base/bind.h"
@@ skipping 21 matching lines @@
   // Callback signature used to create ChunkDemuxerStreams.
   typedef base::Callback<ChunkDemuxerStream*(DemuxerStream::Type)>
       CreateDemuxerStreamCB;
 
   typedef base::Callback<void(ChunkDemuxerStream*, const TextTrackConfig&)>
       NewTextTrackCB;
 
   SourceBufferState(std::unique_ptr<StreamParser> stream_parser,
                     std::unique_ptr<FrameProcessor> frame_processor,
                     const CreateDemuxerStreamCB& create_demuxer_stream_cb,
-                    const scoped_refptr<MediaLog>& media_log);
+                    MediaLog* media_log);
 
   ~SourceBufferState();
 
   void Init(const StreamParser::InitCB& init_cb,
             const std::string& expected_codecs,
             const StreamParser::EncryptedMediaInitDataCB&
                 encrypted_media_init_data_cb,
             const NewTextTrackCB& new_text_track_cb);
 
   // Appends new data to the StreamParser.
@@ skipping 149 matching lines @@
   std::unique_ptr<StreamParser> stream_parser_;
 
   // Note that ChunkDemuxerStreams are created and owned by the parent
   // ChunkDemuxer. They are not owned by |this|.
   using DemuxerStreamMap = std::map<StreamParser::TrackId, ChunkDemuxerStream*>;
   DemuxerStreamMap audio_streams_;
   DemuxerStreamMap video_streams_;
   DemuxerStreamMap text_streams_;
 
   std::unique_ptr<FrameProcessor> frame_processor_;
-  scoped_refptr<MediaLog> media_log_;
+  MediaLog* media_log_;
   StreamParser::InitCB init_cb_;
 
   State state_;
 
   // During Append(), OnNewConfigs() will trigger the initialization segment
   // received algorithm. Note, the MSE spec explicitly disallows this algorithm
   // during an Abort(), since Abort() is allowed only to emit coded frames, and
   // only if the parser is PARSING_MEDIA_SEGMENT (not an INIT segment). So we
   // also have a flag here that indicates if Append is in progress and we can
   // invoke this callback.
   Demuxer::MediaTracksUpdatedCB init_segment_received_cb_;
   bool append_in_progress_ = false;
   bool first_init_segment_received_ = false;
 
   std::vector<AudioCodec> expected_audio_codecs_;
   std::vector<VideoCodec> expected_video_codecs_;
 
   // Indicates that timestampOffset should be updated automatically during
   // OnNewBuffers() based on the earliest end timestamp of the buffers provided.
   // TODO(wolenetz): Refactor this function while integrating April 29, 2014
   // changes to MSE spec. See http://crbug.com/371499.
   bool auto_update_timestamp_offset_;
 
   DISALLOW_COPY_AND_ASSIGN(SourceBufferState);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_FILTERS_SOURCE_BUFFER_STATE_H_