e provided
   * browsing context id, using the same module name as the current one.
   *
   * @param {string} commandName
   *     The name of the command to execute.
   * @param {number} browsingContextID
   *     The debuggable context ID.
   * @param {object} params
   *    Any command parameters to pass.
   * @param {object=} args
   *     Any additional command arguments to pass.
   * @returns {Promise}
   *     A Promise that will resolve with the return value of the
   *     command once it has been executed.
   */
  _forwardToWindowGlobal(commandName, browsingContextID, params, args = {}) {
    return this.messageHandler.forwardCommand({
      moduleName: this.moduleName,
      commandName,
      destination: {
        type: lazy.WindowGlobalMessageHandler.type,
        id: browsingContextID,
      },
      ...args,
      params,
    });
  }
}
PK