Switch AudioRenderSink::Callback to use AudioBus.

media/filters/audio_renderer_impl.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.
 
 // Audio rendering unit utilizing an AudioRendererSink to output data.
 //
 // This class lives inside three threads during it's lifetime, namely:
 // 1. Render thread.
 //    This object is created on the render thread.
 // 2. Pipeline thread
@@ skipping 102 matching lines @@
   // Estimate earliest time when current buffer can stop playing.
   void UpdateEarliestEndTime(int bytes_filled,
                              base::TimeDelta request_delay,
                              base::Time time_now);
 
   // Methods called on pipeline thread ----------------------------------------
   void DoPlay();
   void DoPause();
 
   // media::AudioRendererSink::RenderCallback implementation.
-  virtual int Render(const std::vector<float*>& audio_data,
-                     int number_of_frames,
+  virtual int Render(AudioBus* audio_bus,
                      int audio_delay_milliseconds) OVERRIDE;
   virtual void OnRenderError() OVERRIDE;
 
   // Helper method that schedules an asynchronous read from the decoder and
   // increments |pending_reads_|.
   //
   // Safe to call from any thread.
   void ScheduleRead_Locked();
 
   // Returns true if the data in the buffer is all before
@@ skipping 80 matching lines @@
   bool underflow_disabled_;
 
   AudioDecoder::ReadCB read_cb_;
 
   DISALLOW_COPY_AND_ASSIGN(AudioRendererImpl);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_FILTERS_AUDIO_RENDERER_IMPL_H_