Backed out changeset b1b50935ab45 (bug 1249313) for for making Bug 1207431 worse

dom/media/webrtc/MediaEngineRemoteVideoSource.cpp

@@ -90,6 +90,8 @@ MediaEngineRemoteVideoSource::Shutdown()
     Deallocate();
   }
 
+  mozilla::camera::Shutdown();
+
   mState = kReleased;
   mInitDone = false;
   return;