move the APM to chrome.

content/renderer/media/webrtc_local_audio_renderer.cc

Index: content/renderer/media/webrtc_local_audio_renderer.cc
diff --git a/content/renderer/media/webrtc_local_audio_renderer.cc b/content/renderer/media/webrtc_local_audio_renderer.cc
index 9435d3321593a1c708b6fd3348ac05d170f2a2a3..52b8feb1637d8a3e84552faeb24d09f3f5b6feda 100644
--- a/content/renderer/media/webrtc_local_audio_renderer.cc
+++ b/content/renderer/media/webrtc_local_audio_renderer.cc
@@ -59,19 +59,15 @@ void WebRtcLocalAudioRenderer::OnRenderError() {
 }
 
 // content::WebRtcAudioCapturerSink implementation
-int WebRtcLocalAudioRenderer::CaptureData(const std::vector<int>& channels,
-                                          const int16* audio_data,
-                                          int sample_rate,
-                                          int number_of_channels,
-                                          int number_of_frames,
-                                          int audio_delay_milliseconds,
-                                          int current_volume,
-                                          bool need_audio_processing,
-                                          bool key_pressed) {
+void WebRtcLocalAudioRenderer::CaptureData(const std::vector<int>& channels,
+                                           const int16* audio_data,
+                                           int sample_rate,
+                                           int number_of_channels,
+                                           int number_of_frames) {
   TRACE_EVENT0("audio", "WebRtcLocalAudioRenderer::CaptureData");
   base::AutoLock auto_lock(thread_lock_);
   if (!playing_ || !volume_)
-    return 0;
+    return;
 
   // Push captured audio to FIFO so it can be read by a local sink.
   if (loopback_fifo_) {
@@ -91,8 +87,6 @@ int WebRtcLocalAudioRenderer::CaptureData(const std::vector<int>& channels,
       DVLOG(1) << "FIFO is full";
     }
   }
-
-  return 0;
 }
 
 void WebRtcLocalAudioRenderer::SetCaptureFormat(