Keep track of accessibility focus across windows.

chrome/test/data/extensions/api_test/automation/tests/desktop/actions.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.
 
 var allTests = [
   function testDoDefault() {
     var firstTextField = findAutomationNode(rootNode,
         function(node) {
           return node.role == 'textField';
         });
     assertTrue(!!firstTextField);
     listenOnce(firstTextField, EventType.focus, function(e) {
       chrome.test.succeed();
     }, true);
     firstTextField.doDefault();
   },
 
-  function testFocus() {
-    var firstFocusableNode = findAutomationNode(rootNode,
-        function(node) {
-          return node.role == 'button' && node.state.focusable;
-        });
-    assertTrue(!!firstFocusableNode);
-    listenOnce(firstFocusableNode, EventType.focus, function(e) {
-      chrome.test.succeed();
-    }, true);
-    firstFocusableNode.focus();
-  },
-
   function testDoDefaultViews() {
     listenOnce(rootNode, 'focus', function(node) {
       chrome.test.succeed();
     }, true);
     var button = rootNode.find(
         {role: 'button', attributes: {name: 'Bookmark this page'}});
     button.doDefault();
   },
 
   function testContextMenu() {
     var addressBar = rootNode.find({role: 'textField'});
     listenOnce(rootNode, EventType.menuStart, function(e) {
       addressBar.showContextMenu();
       chrome.test.succeed();
     }, true);
     addressBar.showContextMenu();
   }
 ];
 
 setUpAndRunTests(allTests);