OnRenderWidgetVisibilityChanged   84 content/browser/worker_host/worker_service_impl.cc   void OnRenderWidgetVisibilityChanged(std::pair<int, int>);
OnRenderWidgetVisibilityChanged  222 content/browser/worker_host/worker_service_impl.cc           base::Bind(&WorkerPrioritySetter::OnRenderWidgetVisibilityChanged,