move the APM to chrome.

content/renderer/media/webrtc_local_audio_track.h

 // 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.
 
 #ifndef CONTENT_RENDERER_MEDIA_WEBRTC_LOCAL_AUDIO_TRACK_H_
 #define CONTENT_RENDERER_MEDIA_WEBRTC_LOCAL_AUDIO_TRACK_H_
 
 #include <list>
 #include <string>
 
@@ skipping 47 matching lines @@
 
   // Starts the local audio track. Called on the main render thread and
   // should be called only once when audio track is created.
   void Start();
 
   // Stops the local audio track. Called on the main render thread and
   // should be called only once when audio track going away.
   void Stop();
 
   // Method called by the capturer to deliver the capture data.
-  void Capture(media::AudioBus* audio_source,
-               int audio_delay_milliseconds,
-               int volume,
-               bool key_pressed);
+  void Capture(const int16* audio_data,
+               int sample_rate,
+               int number_of_channels,
+               int number_of_frames);
 
   // Method called by the capturer to set the audio parameters used by source
   // of the capture data..
   // Can be called on different user threads.
   void SetCaptureFormat(const media::AudioParameters& params);
 
  protected:
   WebRtcLocalAudioTrack(
       const std::string& label,
       const scoped_refptr<WebRtcAudioCapturer>& capturer,
@@ skipping 36 matching lines @@
   base::ThreadChecker thread_checker_;
 
   // Protects |params_| and |sinks_|.
   mutable base::Lock lock_;
 
   // A vector of WebRtc VoE channels that the capturer sends datat to.
   std::vector<int> voe_channels_;
 
   bool need_audio_processing_;
 
-  // Buffers used for temporary storage during capture callbacks.
-  // Allocated during initialization.
-  class ConfiguredBuffer;
-  scoped_refptr<ConfiguredBuffer> buffer_;
+  media::AudioParameters params_;
 
   DISALLOW_COPY_AND_ASSIGN(WebRtcLocalAudioTrack);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_MEDIA_WEBRTC_LOCAL_AUDIO_TRACK_H_