Remove keyIdentifier usage in chrome/browser/resources/*

chrome/browser/resources/options/editable_text_field.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.
 
 cr.define('options', function() {
   /**
    * @constructor
    * @extends {HTMLDivElement}
    */
   var EditableTextField = cr.ui.define('div');
@@ skipping 315 matching lines @@
     /**
      * Called when a key is pressed. Handles committing and canceling edits.
      * @param {Event} e The key down event.
      * @private
      */
     handleKeyDown_: function(e) {
       if (!this.editing)
         return;
 
       var endEdit;
-      switch (e.keyIdentifier) {
-        case 'U+001B':  // Esc
+      switch (e.key) {
+        case 'Escape':
           this.editCanceled_ = true;
           endEdit = true;
           break;
         case 'Enter':
           if (this.currentInputIsValid)
             endEdit = true;
           break;
       }
 
       if (endEdit) {
@@ skipping 15 matching lines @@
       return node instanceof EditableTextField;
     });
     if (itemAncestor)
       document.activeElement.blur();
   });
 
   return {
     EditableTextField: EditableTextField,
   };
 });