The Tor Browser / file revision

 /* This Source Code Form is subject to the terms of the Mozilla Public

  * License, v. 2.0. If a copy of the MPL was not distributed with this

  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

 #include "domstubs.idl"

 interface nsIContentFrameMessageManager;

 [scriptable, uuid(2eb3bc54-78bf-40f2-b301-a5b5b70f7da0)]

 interface nsITabChild : nsISupports

 {

   readonly attribute nsIContentFrameMessageManager messageManager;

   [notxpcom] void sendRequestFocus(in boolean canFocus);

 };