Keep track of accessibility focus across windows.

chrome/browser/resources/chromeos/chromevox/common/chrome_extension_externs.js

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 
 /**
  * @fileoverview Definitions for the Chromium extensions API used by ChromeVox.
  *
  * @externs
  */
@@ skipping 280 matching lines @@
 
 /**
  * @param {number} tabId
  * @param {function(chrome.automation.AutomationNode):void} callback
  */
 chrome.automation.getTree = function(tabId, callback) {};
 
 /** @param {function(!chrome.automation.AutomationNode):void} callback */
 chrome.automation.getDesktop = function(callback) {};
 
+/** @param {function(!chrome.automation.AutomationNode):void} callback */
+chrome.automation.getFocus = function(callback) {};
+
 /**
  * @param {string} filter
  * @param {function(chrome.automation.TreeChange) : void}
  *    observer
  */
 chrome.automation.addTreeChangeObserver = function(filter, observer) {};
 
 /**
  * @param {function(chrome.automation.TreeChange) : void} observer
  */
@@ skipping 236 matching lines @@
 
 /**
  * @type {(Array<number>|undefined)}
  */
 chrome.automation.AutomationNode.prototype.lineBreaks;
 
 /**
  * @type {(number|undefined)}
  */
 chrome.automation.focusOffset;