Replace MessageLoopProxy with SingleThreadTaskRunner for media/filters/ + associated code.

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"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "base/time/time.h"
 #include "media/base/audio_decoder.h"
 #include "media/base/demuxer_stream.h"
 #include "media/base/sample_format.h"
 
 struct AVCodecContext;
 struct AVFrame;
 
 namespace base {
-class MessageLoopProxy;
+class SingleThreadTaskRunner;
 }
 
 namespace media {
 
 class AudioTimestampHelper;
 class DecoderBuffer;
 struct QueuedAudioBuffer;
 class ScopedPtrAVFreeContext;
 class ScopedPtrAVFreeFrame;
 
 class MEDIA_EXPORT FFmpegAudioDecoder : public AudioDecoder {
  public:
   explicit FFmpegAudioDecoder(
-      const scoped_refptr<base::MessageLoopProxy>& message_loop);
+      const scoped_refptr<base::SingleThreadTaskRunner>& task_runner);
   virtual ~FFmpegAudioDecoder();
 
   // AudioDecoder implementation.
   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;
 
   // Callback called from within FFmpeg to allocate a buffer based on
   // the dimensions of |codec_context|. See AVCodecContext.get_buffer2
   // documentation inside FFmpeg.
   int GetAudioBuffer(AVCodecContext* codec, AVFrame* frame, int flags);
 
  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_;
+  scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
   base::WeakPtrFactory<FFmpegAudioDecoder> weak_factory_;
   base::WeakPtr<FFmpegAudioDecoder> weak_this_;
 
   DemuxerStream* demuxer_stream_;
   StatisticsCB statistics_cb_;
   scoped_ptr_malloc<AVCodecContext, ScopedPtrAVFreeContext> codec_context_;
 
   // Decoded audio format.
   int bytes_per_channel_;
   ChannelLayout channel_layout_;
@@ skipping 19 matching lines @@
   // Since multiple frames may be decoded from the same packet we need to queue
   // them up and hand them out as we receive Read() calls.
   std::list<QueuedAudioBuffer> queued_audio_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(FFmpegAudioDecoder);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_FILTERS_FFMPEG_AUDIO_DECODER_H_