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

media/filters/decrypting_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_DECRYPTING_AUDIO_DECODER_H_
 #define MEDIA_FILTERS_DECRYPTING_AUDIO_DECODER_H_
 
 #include "base/callback.h"
 #include "base/memory/ref_counted.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/decryptor.h"
 #include "media/base/demuxer_stream.h"
 
 namespace base {
-class MessageLoopProxy;
+class SingleThreadTaskRunner;
 }
 
 namespace media {
 
 class AudioTimestampHelper;
 class DecoderBuffer;
 class Decryptor;
 
 // Decryptor-based AudioDecoder implementation that can decrypt and decode
 // encrypted audio buffers and return decrypted and decompressed audio frames.
-// All public APIs and callbacks are trampolined to the |message_loop_| so
+// All public APIs and callbacks are trampolined to the |task_runner_| so
 // that no locks are required for thread safety.
 class MEDIA_EXPORT DecryptingAudioDecoder : public AudioDecoder {
  public:
   // We do not currently have a way to let the Decryptor choose the output
   // audio sample format and notify us of its choice. Therefore, we require all
   // Decryptor implementations to decode audio into a fixed integer sample
   // format designated by kSupportedBitsPerChannel.
   // TODO(xhwang): Remove this restriction after http://crbug.com/169105 fixed.
   static const int kSupportedBitsPerChannel;
 
   DecryptingAudioDecoder(
-      const scoped_refptr<base::MessageLoopProxy>& message_loop,
+      const scoped_refptr<base::SingleThreadTaskRunner>& task_runner,
       const SetDecryptorReadyCB& set_decryptor_ready_cb);
   virtual ~DecryptingAudioDecoder();
 
   // 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 void Reset(const base::Closure& closure) OVERRIDE;
   virtual int bits_per_channel() OVERRIDE;
@@ skipping 46 matching lines @@
   void DoReset();
 
   // Updates audio configs from |demuxer_stream_| and resets
   // |output_timestamp_base_| and |total_samples_decoded_|.
   void UpdateDecoderConfig();
 
   // Sets timestamp and duration for |queued_audio_frames_| to make sure the
   // renderer always receives continuous frames without gaps and overlaps.
   void EnqueueFrames(const Decryptor::AudioBuffers& frames);
 
-  scoped_refptr<base::MessageLoopProxy> message_loop_;
+  scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
   base::WeakPtrFactory<DecryptingAudioDecoder> weak_factory_;
   base::WeakPtr<DecryptingAudioDecoder> weak_this_;
 
   State state_;
 
   PipelineStatusCB init_cb_;
   StatisticsCB statistics_cb_;
   ReadCB read_cb_;
   base::Closure reset_cb_;
 
@@ skipping 23 matching lines @@
   int samples_per_second_;
 
   scoped_ptr<AudioTimestampHelper> timestamp_helper_;
 
   DISALLOW_COPY_AND_ASSIGN(DecryptingAudioDecoder);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_FILTERS_DECRYPTING_AUDIO_DECODER_H_