Switch OnMoreData() to use AudioBus.

media/audio/fake_audio_output_stream.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.
 //
 // A fake implementation of AudioOutputStream. It is used for testing purpose.
 // TODO(hclam): Implement a thread in this fake output stream to simulate an
 // audio output stream reading from AudioSourceCallback.
 
 #ifndef MEDIA_AUDIO_FAKE_AUDIO_OUTPUT_STREAM_H_
 #define MEDIA_AUDIO_FAKE_AUDIO_OUTOUT_STREAM_H_
@@ skipping 15 matching lines @@
 
   static FakeAudioOutputStream* GetCurrentFakeStream();
 
   virtual bool Open() OVERRIDE;
   virtual void Start(AudioSourceCallback* callback) OVERRIDE;
   virtual void Stop() OVERRIDE;
   virtual void SetVolume(double volume) OVERRIDE;
   virtual void GetVolume(double* volume) OVERRIDE;
   virtual void Close() OVERRIDE;
 
-  uint8* buffer() { return buffer_.get(); }
+  AudioBus* audio_bus() { return audio_bus_.get(); }
 
  private:
   explicit FakeAudioOutputStream(AudioManagerBase* manager,
                                  const AudioParameters& params);
 
   virtual ~FakeAudioOutputStream();
 
   static FakeAudioOutputStream* current_fake_stream_;
 
   AudioManagerBase* audio_manager_;
   double volume_;
   AudioSourceCallback* callback_;
-  scoped_array<uint8> buffer_;
-  uint32 bytes_per_buffer_;
+  scoped_ptr<AudioBus> audio_bus_;
   bool closed_;
 
   DISALLOW_COPY_AND_ASSIGN(FakeAudioOutputStream);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_AUDIO_FAKE_AUDIO_OUTPUT_STREAM_H_