void FetchHistogramsFromChildProcesses() {
  scoped_refptr<content::MessageLoopRunner> runner = new MessageLoopRunner;

  FetchHistogramsAsynchronously(
      base::ThreadTaskRunnerHandle::Get(), runner->QuitClosure(),
      TestTimeouts::action_max_timeout());
  runner->Run();
}

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.