Eradicate keyIndentifier from devtools/*

third_party/WebKit/Source/devtools/front_end/ui/SoftContextMenu.js

 /*
  * Copyright (C) 2011 Google Inc. All Rights Reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 282 matching lines @@
     {
         var menuItemElement = this._highlightedMenuItemElement ? this._highlightedMenuItemElement.nextSibling : this._contextMenuElement.firstChild;
         while (menuItemElement && (menuItemElement._isSeparator || menuItemElement._isCustom))
             menuItemElement = menuItemElement.nextSibling;
         if (menuItemElement)
             this._highlightMenuItem(menuItemElement, false);
     },
 
     _menuKeyDown: function(event)
     {
-        switch (event.keyIdentifier) {
-        case "Up":
+        switch (event.key) {
+        case "ArrowUp":
             this._highlightPrevious(); break;
-        case "Down":
+        case "ArrowDown":
             this._highlightNext(); break;
-        case "Left":
+        case "ArrowLeft":
             if (this._parentMenu) {
                 this._highlightMenuItem(null, false);
                 this._parentMenu._hideSubMenu();
             }
             break;
-        case "Right":
+        case "ArrowRight":
             if (!this._highlightedMenuItemElement)
                 break;
             if (this._highlightedMenuItemElement._subItems) {
                 this._showSubMenu(this._highlightedMenuItemElement);
                 this._subMenu._focus();
                 this._subMenu._highlightNext();
             }
             break;
-        case "U+001B": // Escape
+        case "Escape":
             this._discardMenu(false, event); break;
         case "Enter":
             if (!isEnterKey(event))
                 break;
             // Fall through
-        case "U+0020": // Space
+        case " ": // Space
             if (this._highlightedMenuItemElement)
                 this._triggerAction(this._highlightedMenuItemElement, event);
             if (this._highlightedMenuItemElement._subItems) {
                 this._subMenu._focus();
                 this._subMenu._highlightNext();
             }
             break;
         }
         event.consume(true);
     },
@@ skipping 49 matching lines @@
 
     _discardSubMenus: function()
     {
         if (this._subMenu)
             this._subMenu._discardSubMenus();
         this.element.remove();
         if (this._parentMenu)
             delete this._parentMenu._subMenu;
     }
 }