Remove keyIdentifier usage in chrome/browser/resources/*

chrome/browser/resources/hotword_audio_verification/main.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 appWindow = chrome.app.window.current();
 
 document.addEventListener('DOMContentLoaded', function() {
   chrome.hotwordPrivate.getLocalizedStrings(function(strings) {
     loadTimeData.data = strings;
     i18nTemplate.process(document, loadTimeData);
 
     var flow = new Flow();
     flow.startFlow();
 
     var pressFunction = function(e) {
       // Only respond to 'Enter' key presses.
-      if (e.type == 'keyup' && e.keyIdentifier != 'Enter')
+      if (e.type == 'keyup' && e.key != 'Enter')
         return;
 
       var classes = e.target.classList;
       if (classes.contains('close') || classes.contains('finish-button')) {
         flow.stopTraining();
         appWindow.close();
         e.preventDefault();
       }
       if (classes.contains('retry-button')) {
         flow.handleRetry();
@@ skipping 13 matching lines @@
       flow.advanceStep();
       e.preventDefault();
     });
 
     $('settings-link').addEventListener('click', function(e) {
       chrome.browser.openTab({'url': 'chrome://settings'}, function() {});
       e.preventDefault();
     });
   });
 });