Fix JavaScript errors in options2

chrome/browser/resources/options2/manage_profile_overlay.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() {
   var OptionsPage = options.OptionsPage;
   var ArrayDataModel = cr.ui.ArrayDataModel;
 
   const localStrings = new LocalStrings();
 
@@ skipping 147 matching lines @@
      * Hide the error bubble.
      * @private
      */
     hideErrorBubble_: function() {
       $('manage-profile-error-bubble').hidden = true;
       $('manage-profile-ok').disabled = false;
     },
 
     /**
      * oninput callback for <input> field.
-     * @param event The event object
+     * @param {Event} event The event object.
      * @private
      */
     onNameChanged_: function(event) {
       var newName = event.target.value;
       var oldName = this.profileInfo_.name;
 
       if (newName == oldName) {
         this.hideErrorBubble_();
       } else if (this.profileNames_[newName] != undefined) {
         this.showErrorBubble_('manageProfilesDuplicateNameError');
@@ skipping 78 matching lines @@
       var instance = ManageProfileOverlay.getInstance();
       return instance[name + '_'].apply(instance, arguments);
     };
   });
 
   // Export
   return {
     ManageProfileOverlay: ManageProfileOverlay
   };
 });