[Cast] Remove AudioDecoder's dependency on WebRTC, and refactor/clean-up AudioReceiver.

media/cast/cast_receiver_impl.cc

 // Copyright 2013 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.
 
 #include "media/cast/cast_receiver_impl.h"
 
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/logging.h"
 #include "base/message_loop/message_loop.h"
@@ skipping 31 matching lines @@
 
   virtual void GetEncodedVideoFrame(const VideoFrameEncodedCallback& callback)
       OVERRIDE {
     cast_environment_->PostTask(CastEnvironment::MAIN,
                                 FROM_HERE,
                                 base::Bind(&VideoReceiver::GetEncodedVideoFrame,
                                            video_receiver_->AsWeakPtr(),
                                            callback));
   }
 
-  virtual void GetRawAudioFrame(int number_of_10ms_blocks,
-                                int desired_frequency,
-                                const AudioFrameDecodedCallback& callback)
+  virtual void GetRawAudioFrame(const AudioFrameDecodedCallback& callback)
       OVERRIDE {
     cast_environment_->PostTask(CastEnvironment::MAIN,
                                 FROM_HERE,
                                 base::Bind(&AudioReceiver::GetRawAudioFrame,
                                            audio_receiver_->AsWeakPtr(),
-                                           number_of_10ms_blocks,
-                                           desired_frequency,
                                            callback));
   }
 
   virtual void GetCodedAudioFrame(const AudioFrameEncodedCallback& callback)
       OVERRIDE {
     cast_environment_->PostTask(CastEnvironment::MAIN,
                                 FROM_HERE,
                                 base::Bind(&AudioReceiver::GetEncodedAudioFrame,
                                            audio_receiver_->AsWeakPtr(),
                                            callback));
@@ skipping 86 matching lines @@
 transport::PacketReceiverCallback CastReceiverImpl::packet_receiver() {
   return base::Bind(&CastReceiverImpl::ReceivedPacket, base::Unretained(this));
 }
 
 scoped_refptr<FrameReceiver> CastReceiverImpl::frame_receiver() {
   return frame_receiver_;
 }
 
 }  // namespace cast
 }  // namespace media