Renamed VideoSourceInterface to VideoTrackSourceInterface.

talk/app/webrtc/objc/RTCPeerConnectionFactory.mm

 /*
  * libjingle
  * Copyright 2013 Google Inc.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
  *
  *  1. Redistributions of source code must retain the above copyright notice,
  *     this list of conditions and the following disclaimer.
  *  2. Redistributions in binary form must reproduce the above copyright notice,
@@ skipping 107 matching lines @@
   rtc::scoped_refptr<webrtc::MediaStreamInterface> nativeMediaStream =
       self.nativeFactory->CreateLocalMediaStream([label UTF8String]);
   return [[RTCMediaStream alloc] initWithMediaStream:nativeMediaStream];
 }
 
 - (RTCVideoSource*)videoSourceWithCapturer:(RTCVideoCapturer*)capturer
                                constraints:(RTCMediaConstraints*)constraints {
   if (!capturer) {
     return nil;
   }
-  rtc::scoped_refptr<webrtc::VideoSourceInterface> source =
-      self.nativeFactory->CreateVideoSource([capturer takeNativeCapturer],
-                                            constraints.constraints);
+  rtc::scoped_refptr<webrtc::VideoTrackSourceInterface> source =
+      self.nativeFactory->CreateVideoSource([capturer takeNativeCapturer], constraints.constraints);
   return [[RTCVideoSource alloc] initWithMediaSource:source];
 }
 
 - (RTCVideoTrack*)videoTrackWithID:(NSString*)videoId
                             source:(RTCVideoSource*)source {
   rtc::scoped_refptr<webrtc::VideoTrackInterface> track =
       self.nativeFactory->CreateVideoTrack([videoId UTF8String],
                                            source.videoSource);
   return [[RTCVideoTrack alloc] initWithMediaTrack:track];
 }
 
 - (RTCAudioTrack*)audioTrackWithID:(NSString*)audioId {
   rtc::scoped_refptr<webrtc::AudioTrackInterface> track =
       self.nativeFactory->CreateAudioTrack([audioId UTF8String], NULL);
   return [[RTCAudioTrack alloc] initWithMediaTrack:track];
 }
 
 @end