Options: maintain history entries on the parent frame.

chrome/browser/resources/extensions/extensions.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"></include>
 <include src="extension_code.js"></include>
 <include src="extension_commands_overlay.js"></include>
 <include src="extension_focus_manager.js"></include>
 <include src="extension_list.js"></include>
 <include src="pack_extension_overlay.js"></include>
@@ skipping 85 matching lines @@
 
     /**
      * Perform initial setup.
      */
     initialize: function() {
       uber.onContentFrameLoaded();
       cr.ui.FocusOutlineManager.forDocument(document);
       measureCheckboxStrings();
 
       // Set the title.
-      var title = loadTimeData.getString('extensionSettings');
-      uber.invokeMethodOnParent('setTitle', {title: title});
+      uber.setTitle(loadTimeData.getString('extensionSettings'));
 
       // This will request the data to show on the page and will get a response
       // back in returnExtensionsData.
       chrome.send('extensionSettingsRequestExtensionsData');
 
       var extensionLoader = extensions.ExtensionLoader.getInstance();
 
       $('toggle-dev-on').addEventListener('change',
           this.handleToggleDevMode_.bind(this));
       $('dev-controls').addEventListener('webkitTransitionEnd',
@@ skipping 317 matching lines @@
 
   // Export
   return {
     ExtensionSettings: ExtensionSettings
   };
 });
 
 window.addEventListener('load', function(e) {
   extensions.ExtensionSettings.getInstance().initialize();
 });