Options: maintain history entries on the parent frame.

chrome/browser/resources/help/help.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.
 
 <include src="../uber/uber_utils.js">
 
 cr.define('help', function() {
   /**
    * Encapsulated handling of the help page.
    */
@@ skipping 38 matching lines @@
      * Perform initial setup.
      */
     initialize: function() {
       help.HelpBasePage.prototype.initialize.call(this, 'help-page');
 
       var self = this;
 
       uber.onContentFrameLoaded();
 
       // Set the title.
-      var title = loadTimeData.getString('helpTitle');
-      uber.invokeMethodOnParent('setTitle', {title: title});
+      uber.setTitle(loadTimeData.getString('helpTitle'));
 
       $('product-license').innerHTML = loadTimeData.getString('productLicense');
       if (cr.isChromeOS) {
         $('product-os-license').innerHTML =
             loadTimeData.getString('productOsLicense');
       }
 
       var productTOS = $('product-tos');
       if (productTOS)
         productTOS.innerHTML = loadTimeData.getString('productTOS');
@@ skipping 490 matching lines @@
     HelpPage: HelpPage
   };
 });
 
 /**
  * onload listener to initialize the HelpPage.
  */
 window.onload = function() {
   help.HelpPage.getInstance().initialize();
 };