Remove WebRtc audio source references for local audio tracks.

content/renderer/media/webrtc/peer_connection_dependency_factory.h

Index: content/renderer/media/webrtc/peer_connection_dependency_factory.h
diff --git a/content/renderer/media/webrtc/peer_connection_dependency_factory.h b/content/renderer/media/webrtc/peer_connection_dependency_factory.h
index e15b62b3b7c06db93426718c531ec175320447ca..e5e017c5a7ccb27b29c83bea1678f373557e0875 100644
--- a/content/renderer/media/webrtc/peer_connection_dependency_factory.h
+++ b/content/renderer/media/webrtc/peer_connection_dependency_factory.h
@@ -124,11 +124,6 @@ class CONTENT_EXPORT PeerConnectionDependencyFactory
   virtual scoped_refptr<base::SingleThreadTaskRunner> GetWebRtcSignalingThread()
       const;
 
-  // Called by ProcessedLocalAudioSource to have the PeerConnection factory
-  // create the corresponding WebRtc-internal instance.
-  virtual scoped_refptr<webrtc::AudioSourceInterface> CreateLocalAudioSource(
-      const cricket::AudioOptions& options);
-
  protected:
   // Asks the PeerConnection factory to create a Local VideoTrack object with
   // the video source using |capturer|.