Remove keyIdentifier usage in chrome/browser/resources/*

chrome/browser/resources/ntp4/nav_dot.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.
 
 /**
  * @fileoverview Nav dot
  * This is the class for the navigation controls that appear along the bottom
  * of the NTP.
  */
 
@@ skipping 96 matching lines @@
      */
     switchToPage: function() {
       ntp.getCardSlider().selectCardByValue(this.page_, true);
     },
 
     /**
      * Handler for keydown event on the dot.
      * @param {Event} e The KeyboardEvent.
      */
     onKeyDown_: function(e) {
-      if (e.keyIdentifier == 'Enter') {
+      if (e.key == 'Enter') {
         this.onClick_(e);
         e.stopPropagation();
       }
     },
 
     /**
      * Clicking causes the associated page to show.
      * @param {Event} e The click event.
      * @private
      */
@@ skipping 29 matching lines @@
       if (this.ownerDocument.activeElement != this.input_)
         e.preventDefault();
     },
 
     /**
      * Handle keypresses on the input.
      * @param {Event} e The click event.
      * @private
      */
     onInputKeyDown_: function(e) {
-      switch (e.keyIdentifier) {
-        case 'U+001B':  // Escape cancels edits.
+      switch (e.key) {
+        case 'Escape':  // Escape cancels edits.
           this.input_.value = this.displayTitle;
         case 'Enter':  // Fall through.
           this.input_.blur();
           break;
       }
     },
 
     /**
      * When the input blurs, commit the edited changes.
      * @param {Event} e The blur event.
@@ skipping 87 matching lines @@
     onTransitionEnd_: function(e) {
       if (e.propertyName === 'max-width' && this.classList.contains('small'))
         this.parentNode.removeChild(this);
     },
   };
 
   return {
     NavDot: NavDot,
   };
 });