invalid_msc_ 57 ui/gl/sync_control_vsync_provider.cc bool prev_invalid_msc = invalid_msc_; invalid_msc_ 58 ui/gl/sync_control_vsync_provider.cc invalid_msc_ = (media_stream_counter == 0); invalid_msc_ 59 ui/gl/sync_control_vsync_provider.cc if (invalid_msc_) { invalid_msc_ 34 ui/gl/sync_control_vsync_provider.h bool invalid_msc_;