Convert Event#keyIdentifier (deprecated) to Event#key

chrome/browser/ui/webui/options/options_browsertest.js

 // Copyright (c) 2012 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.
 
 GEN_INCLUDE(['options_browsertest_base.js']);
 GEN('#include "chrome/browser/ui/webui/options/options_browsertest.h"');
 
 /** @const */ var SUPERVISED_USERS_PREF = 'profile.managed_users';
 
 /**
@@ skipping 303 matching lines @@
 // Verify that preventDefault() is called on 'Enter' keydown events that trigger
 // the default button. If this doesn't happen, other elements that may get
 // focus (by the overlay closing for instance), will execute in addition to the
 // default button. See crbug.com/268336.
 TEST_F('OptionsWebUITest', 'EnterPreventsDefault', function() {
   var page = HomePageOverlay.getInstance();
   PageManager.showPageByName(page.name);
   var event = new KeyboardEvent('keydown', {
     'bubbles': true,
     'cancelable': true,
-    'keyIdentifier': 'Enter'
+    'key': 'Enter'
   });
   assertFalse(event.defaultPrevented);
   page.pageDiv.dispatchEvent(event);
   assertTrue(event.defaultPrevented);
   testDone();
 });
 
 // Verifies that sending an empty list of indexes to move doesn't crash chrome.
 TEST_F('OptionsWebUITest', 'emptySelectedIndexesDoesntCrash', function() {
   chrome.send('dragDropStartupPage', [0, []]);
@@ skipping 623 matching lines @@
   __proto__: OptionsWebUIExtendedTest.prototype,
 
   /** @override */
   browsePreload: 'chrome://settings-frame/nonexistantPage',
 };
 
 TEST_F('OptionsWebUIRedirectTest', 'TestURL', function() {
   assertEquals('chrome://settings-frame/', document.location.href);
   this.verifyHistory_([''], testDone);
 });