Convert MediaLog from being ref counted to owned by WebMediaPlayer.

media/filters/chunk_demuxer.h

 // 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.
 
 #ifndef MEDIA_FILTERS_CHUNK_DEMUXER_H_
 #define MEDIA_FILTERS_CHUNK_DEMUXER_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 78 matching lines @@
   // Returns the size of the buffered data in bytes.
   size_t GetBufferedSize() const;
 
   // Signal to the stream that buffers handed in through subsequent calls to
   // Append() belong to a coded frame group that starts at |start_timestamp|.
   void OnStartOfCodedFrameGroup(DecodeTimestamp start_timestamp);
 
   // Called when midstream config updates occur.
   // Returns true if the new config is accepted.
   // Returns false if the new config should trigger an error.
-  bool UpdateAudioConfig(const AudioDecoderConfig& config,
-                         const scoped_refptr<MediaLog>& media_log);
-  bool UpdateVideoConfig(const VideoDecoderConfig& config,
-                         const scoped_refptr<MediaLog>& media_log);
-  void UpdateTextConfig(const TextTrackConfig& config,
-                        const scoped_refptr<MediaLog>& media_log);
+  bool UpdateAudioConfig(const AudioDecoderConfig& config, MediaLog* media_log);
+  bool UpdateVideoConfig(const VideoDecoderConfig& config, MediaLog* media_log);
+  void UpdateTextConfig(const TextTrackConfig& config, MediaLog* media_log);
 
   void MarkEndOfStream();
   void UnmarkEndOfStream();
 
   // DemuxerStream methods.
   void Read(const ReadCB& read_cb) override;
   Type type() const override;
   Liveness liveness() const override;
   AudioDecoderConfig audio_decoder_config() override;
   VideoDecoderConfig video_decoder_config() override;
@@ skipping 62 matching lines @@
     kReachedIdLimit,  // Reached ID limit. We can't handle any more IDs.
   };
 
   // |open_cb| Run when Initialize() is called to signal that the demuxer
   //   is ready to receive media data via AppenData().
   // |encrypted_media_init_data_cb| Run when the demuxer determines that an
   //   encryption key is needed to decrypt the content.
   // |media_log| Used to report content and engine debug messages.
   ChunkDemuxer(const base::Closure& open_cb,
                const EncryptedMediaInitDataCB& encrypted_media_init_data_cb,
-               const scoped_refptr<MediaLog>& media_log);
+               MediaLog* media_log);
   ~ChunkDemuxer() override;
 
   // Demuxer implementation.
   std::string GetDisplayName() const override;
 
   // |enable_text| Process inband text tracks in the normal way when true,
   //   otherwise ignore them.
   void Initialize(DemuxerHost* host,
                   const PipelineStatusCB& init_cb,
                   bool enable_text_tracks) override;
@@ skipping 205 matching lines @@
   mutable base::Lock lock_;
   State state_;
   bool cancel_next_seek_;
 
   DemuxerHost* host_;
   base::Closure open_cb_;
   EncryptedMediaInitDataCB encrypted_media_init_data_cb_;
   bool enable_text_;
 
   // MediaLog for reporting messages and properties to debug content and engine.
-  scoped_refptr<MediaLog> media_log_;
+  MediaLog* media_log_;
 
   PipelineStatusCB init_cb_;
   // Callback to execute upon seek completion.
   // TODO(wolenetz/acolwell): Protect against possible double-locking by first
   // releasing |lock_| before executing this callback. See
   // http://crbug.com/308226
   PipelineStatusCB seek_cb_;
 
   using OwnedChunkDemuxerStreamVector =
       std::vector<std::unique_ptr<ChunkDemuxerStream>>;
@@ skipping 32 matching lines @@
   int detected_text_track_count_;
 
   std::map<MediaTrack::Id, ChunkDemuxerStream*> track_id_to_demux_stream_map_;
 
   DISALLOW_COPY_AND_ASSIGN(ChunkDemuxer);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_FILTERS_CHUNK_DEMUXER_H_