move the APM to chrome.

content/renderer/media/webrtc_local_audio_track.h

Index: content/renderer/media/webrtc_local_audio_track.h
diff --git a/content/renderer/media/webrtc_local_audio_track.h b/content/renderer/media/webrtc_local_audio_track.h
index 01b11208021d3e32198eb3061f1895957fb7f29d..38027d93bf6c9a86a5197833b49be87cfd5eabaf 100644
--- a/content/renderer/media/webrtc_local_audio_track.h
+++ b/content/renderer/media/webrtc_local_audio_track.h
@@ -65,10 +65,10 @@ class CONTENT_EXPORT WebRtcLocalAudioTrack
   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..
@@ -125,10 +125,7 @@ class CONTENT_EXPORT WebRtcLocalAudioTrack
 
   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);
 };