static isNonNetworkRequest(record) {
    // The 'protocol' field in devtools a string more like a `scheme`
    return UrlUtils.isNonNetworkProtocol(record.protocol) ||
      // But `protocol` can fail to be populated if the request fails, so fallback to scheme.
      UrlUtils.isNonNetworkProtocol(record.parsedURL.scheme);
  }
@param {Pick<NetworkRequest, 'protocol'|'parsedURL'>} record
@return {boolean}