ResourcesReady    907 content/renderer/media/media_stream_impl.cc     const ResourcesReady& callback) {
ResourcesReady    162 content/renderer/media/media_stream_impl.h     void CallbackOnTracksStarted(const ResourcesReady& callback);
ResourcesReady    173 content/renderer/media/media_stream_impl.h     ResourcesReady ready_callback_;