Options: maintain history entries on the parent frame.

chrome/browser/ui/webui/options/chromeos/bluetooth_options_browsertest.js

 // Copyright (c) 2013 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.
 
 GEN('#if defined(OS_CHROMEOS)');
 
 function BluetoothWebUITest() {}
 
 BluetoothWebUITest.prototype = {
   __proto__: testing.Test.prototype,
 
   /**
    * Start tests from the main-settings page.
    */
-  browsePreload: 'chrome://settings-frame/settings',
+  browsePreload: 'chrome://settings-frame/',
 
   /**
    * @override
    */
   preLoad: function() {
     this.makeAndRegisterMockHandler([
       'bluetoothEnableChange',
       'updateBluetoothDevice',
       'findBluetoothDevices',
       'stopBluetoothDeviceDiscovery',
@@ skipping 339 matching lines @@
     assertTrue(!!element);
     var label = element.querySelector('.bluetooth-device-label');
     assertTrue(!!label);
     assertEquals(maliciousStrings[i], label.textContent);
     assertEquals(pairDeviceDialogSize, nodeCount(pairDeviceDialog));
   }
 
 });
 
 GEN('#endif');