StopUnreferencedSources  542 content/renderer/media/media_stream_impl.cc     StopUnreferencedSources(true);
StopUnreferencedSources  731 content/renderer/media/media_stream_impl.cc   StopUnreferencedSources(true);
StopUnreferencedSources  238 content/renderer/media/media_stream_impl.h   void StopUnreferencedSources(bool notify_dispatcher);