Remove reference counting from media::Demuxer and friends.

media/filters/ffmpeg_audio_decoder.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_FFMPEG_AUDIO_DECODER_H_
 #define MEDIA_FILTERS_FFMPEG_AUDIO_DECODER_H_
 
 #include <list>
 
 #include "base/callback.h"
@@ skipping 16 matching lines @@
 class DecoderBuffer;
 struct QueuedAudioBuffer;
 
 class MEDIA_EXPORT FFmpegAudioDecoder : public AudioDecoder {
  public:
   explicit FFmpegAudioDecoder(
       const scoped_refptr<base::MessageLoopProxy>& message_loop);
   virtual ~FFmpegAudioDecoder();
 
   // AudioDecoder implementation.
-  virtual void Initialize(const scoped_refptr<DemuxerStream>& stream,
+  virtual void Initialize(DemuxerStream* stream,
                           const PipelineStatusCB& status_cb,
                           const StatisticsCB& statistics_cb) OVERRIDE;
   virtual void Read(const ReadCB& read_cb) OVERRIDE;
   virtual int bits_per_channel() OVERRIDE;
   virtual ChannelLayout channel_layout() OVERRIDE;
   virtual int samples_per_second() OVERRIDE;
   virtual void Reset(const base::Closure& closure) OVERRIDE;
 
  private:
   // Reads from the demuxer stream with corresponding callback method.
   void ReadFromDemuxerStream();
   void BufferReady(DemuxerStream::Status status,
                    const scoped_refptr<DecoderBuffer>& input);
 
   bool ConfigureDecoder();
   void ReleaseFFmpegResources();
   void ResetTimestampState();
   void RunDecodeLoop(const scoped_refptr<DecoderBuffer>& input,
                      bool skip_eos_append);
 
   scoped_refptr<base::MessageLoopProxy> message_loop_;
   base::WeakPtrFactory<FFmpegAudioDecoder> weak_factory_;
   base::WeakPtr<FFmpegAudioDecoder> weak_this_;
 
-  scoped_refptr<DemuxerStream> demuxer_stream_;
+  DemuxerStream* demuxer_stream_;
   StatisticsCB statistics_cb_;
   AVCodecContext* codec_context_;
 
   // Decoded audio format.
   int bits_per_channel_;
   ChannelLayout channel_layout_;
   int channels_;
   int samples_per_second_;
 
   // AVSampleFormat initially requested; not Chrome's SampleFormat.
@@ skipping 20 matching lines @@
   // We may need to convert the audio data coming out of FFmpeg from planar
   // float to integer.
   scoped_ptr<AudioBus> converter_bus_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(FFmpegAudioDecoder);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_FILTERS_FFMPEG_AUDIO_DECODER_H_