Replace AudioDecoderConfig with simple accessors on AudioDecoder.

media/filters/audio_renderer_base.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.
 
 // AudioRendererBase takes care of the tricky queuing work and provides simple
 // methods for subclasses to peek and poke at audio data.  In addition to
 // AudioRenderer interface methods this classes doesn't implement, subclasses
 // must also implement the following methods:
 //   OnInitialized
 //   OnStop
@@ skipping 28 matching lines @@
 
   virtual void Seek(base::TimeDelta time, const FilterStatusCB& cb);
 
   // AudioRenderer implementation.
   virtual void Initialize(AudioDecoder* decoder, FilterCallback* callback);
   virtual bool HasEnded();
 
  protected:
   // Subclasses should return true if they were able to initialize, false
   // otherwise.
-  virtual bool OnInitialize(const AudioDecoderConfig& config) = 0;
+  virtual bool OnInitialize(int bits_per_channel,
+                            ChannelLayout channel_layout,
+                            int sample_rate) = 0;
 
   // Called by Stop().  Subclasses should perform any necessary cleanup during
   // this time, such as stopping any running threads.
   virtual void OnStop() = 0;
 
   // Called when a AudioDecoder completes decoding and decrements
   // |pending_reads_|.
   virtual void ConsumeAudioSamples(scoped_refptr<Buffer> buffer_in);
 
   // Fills the given buffer with audio data by delegating to its |algorithm_|.
@@ skipping 68 matching lines @@
   FilterStatusCB seek_cb_;
 
   base::TimeDelta seek_timestamp_;
 
   DISALLOW_COPY_AND_ASSIGN(AudioRendererBase);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_FILTERS_AUDIO_RENDERER_BASE_H_