// Get rid of all CR characters, we may be running under windows.
  string sanitized_expected_contents(expected_contents);
  if (ignore_cr) {
    sanitized_expected_contents.erase(
        std::remove(sanitized_expected_contents.begin(),
                    sanitized_expected_contents.end(), '\r'),
        sanitized_expected_contents.end());
  }

  // To update the golden file, flip update_golden to true and run the