Replace AudioDecoderConfig with simple accessors on AudioDecoder.

content/renderer/media/audio_renderer_impl.h

 // Copyright (c) 2011 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 audio output stream provided by browser
 // process through IPC.
 //
 // Relationship of classes.
 //
 //    AudioRendererHost                AudioRendererImpl
@@ skipping 67 matching lines @@
   virtual void Pause(media::FilterCallback* callback);
   virtual void Seek(base::TimeDelta time, const media::FilterStatusCB& cb);
   virtual void Play(media::FilterCallback* callback);
 
   // media::AudioRenderer implementation.
   virtual void SetVolume(float volume);
 
  protected:
   // Methods called on audio renderer thread ----------------------------------
   // These methods are called from AudioRendererBase.
-  virtual bool OnInitialize(const media::AudioDecoderConfig& config);
+  virtual bool OnInitialize(int bits_per_channel,
+                            ChannelLayout channel_layout,
+                            int sample_rate);
   virtual void OnStop();
 
   // Called when the decoder completes a Read().
   virtual void ConsumeAudioSamples(scoped_refptr<media::Buffer> buffer_in);
 
  private:
   // We are using either low- or high-latency code path.
   enum LatencyType {
     kUninitializedLatency = 0,
     kLowLatency,
@@ skipping 121 matching lines @@
   // remember when it should stop playing, and do not assume that buffer is
   // empty till that time. Workaround is not bulletproof, as we don't exactly
   // know when that particular data would start playing, but it is much better
   // than nothing.
   base::Time earliest_end_time_;
 
   DISALLOW_COPY_AND_ASSIGN(AudioRendererImpl);
 };
 
 #endif  // CONTENT_RENDERER_MEDIA_AUDIO_RENDERER_IMPL_H_