Files.app: Add a test to create new folder.

chrome/browser/resources/file_manager/foreground/js/file_manager.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.
 
 'use strict';
 
 /**
  * FileManager constructor.
  *
  * FileManager objects encapsulate the functionality of the file selector
@@ skipping 2444 matching lines @@
    */
   FileManager.prototype.onRenameInputKeyDown_ = function(event) {
     if (!this.isRenamingInProgress())
       return;
 
     // Do not move selection or lead item in list during rename.
     if (event.keyIdentifier == 'Up' || event.keyIdentifier == 'Down') {
       event.stopPropagation();
     }
 
-    switch (util.getKeyModifiers(event) + event.keyCode) {
-      case '27':  // Escape
+    switch (util.getKeyModifiers(event) + event.keyIdentifier) {
+      case 'U+001B':  // Escape
         this.cancelRename_();
         event.preventDefault();
         break;
 
-      case '13':  // Enter
+      case 'Enter':
         this.commitRename_();
         event.preventDefault();
         break;
     }
   };
 
   /**
    * @type {Event} Blur event.
    * @private
    */
@@ skipping 1238 matching lines @@
       callback(this.preferences_);
       return;
     }
 
     chrome.fileBrowserPrivate.getPreferences(function(prefs) {
       this.preferences_ = prefs;
       callback(prefs);
     }.bind(this));
   };
 })();