Options: maintain history entries on the parent frame.

chrome/browser/ui/webui/options/settings_format_browsertest.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.
 
 /**
  * TestFixture for testing the formatting of settings pages.
  * @extends {testing.Test}
  * @constructor
  */
 function SettingsFormatWebUITest() {}
@@ skipping 21 matching lines @@
     MISSING_RADIO_BUTTON_NAME: 'Radio button $1 is missing the name property',
     MISSING_RADIO_BUTTON_VALUE: 'Radio button $1 is missing the value property',
 };
 
 SettingsFormatWebUITest.prototype = {
   __proto__: testing.Test.prototype,
 
   /**
    * Navigate to browser settings.
    */
-  browsePreload: 'chrome://settings-frame/settings',
+  browsePreload: 'chrome://settings-frame/',
 
   /**
    * List of errors generated during a test. Used instead of expect* functions
    * to suppress verbosity. The implementation of errorsToMessage in the
    * testing API generates a call stack for each error produced which greatly
    * reduces readability.
    * @type {Array.<string>}
    */
   errors: null,
 
@@ skipping 95 matching lines @@
   var elements = document.querySelectorAll('input[type=radio]');
   for (var i = 0; i < elements.length; i++) {
     var element = elements[i];
     if (!element.name)
       this.fail('MISSING_RADIO_BUTTON_NAME', element);
 
     if (!element.getAttribute('value'))
       this.fail('MISSING_RADIO_BUTTON_VALUE', element);
   }
 });