void RenderProcessHostWatcher::RenderProcessHostDestroyed(
    RenderProcessHost* host) {
  render_process_host_ = nullptr;
  if (type_ == WATCH_FOR_HOST_DESTRUCTION)
    message_loop_runner_->Quit();
}

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.