Revert 262050 "Implement a source for remote video tracks."

trunk/src/content/renderer/media/media_stream_dependency_factory.cc

Index: trunk/src/content/renderer/media/media_stream_dependency_factory.cc
===================================================================
--- trunk/src/content/renderer/media/media_stream_dependency_factory.cc	(revision 262817)
+++ trunk/src/content/renderer/media/media_stream_dependency_factory.cc	(working copy)
@@ -678,20 +678,24 @@
                                              GetWebRtcAudioDevice());
 }
 
-void MediaStreamDependencyFactory::AddNativeAudioTrackToBlinkTrack(
+void MediaStreamDependencyFactory::AddNativeTrackToBlinkTrack(
     webrtc::MediaStreamTrackInterface* native_track,
     const blink::WebMediaStreamTrack& webkit_track,
     bool is_local_track) {
   DCHECK(!webkit_track.isNull() && !webkit_track.extraData());
-  DCHECK_EQ(blink::WebMediaStreamSource::TypeAudio,
-            webkit_track.source().type());
   blink::WebMediaStreamTrack track = webkit_track;
 
-  DVLOG(1) << "AddNativeTrackToBlinkTrack() audio";
-  track.setExtraData(
-      new MediaStreamTrack(
-          static_cast<webrtc::AudioTrackInterface*>(native_track),
-          is_local_track));
+  if (track.source().type() == blink::WebMediaStreamSource::TypeVideo) {
+    DVLOG(1) << "AddNativeTrackToBlinkTrack() video";
+    track.setExtraData(new WebRtcMediaStreamVideoTrack(
+        static_cast<webrtc::VideoTrackInterface*>(native_track)));
+  } else {
+    DVLOG(1) << "AddNativeTrackToBlinkTrack() audio";
+    track.setExtraData(
+        new MediaStreamTrack(
+            static_cast<webrtc::AudioTrackInterface*>(native_track),
+            is_local_track));
+  }
 }
 
 bool MediaStreamDependencyFactory::OnControlMessageReceived(