Simplify Site Settings tests.

chrome/test/data/webui/settings/cr_settings_browsertest.js

 // Copyright 2015 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.
 
 /** @fileoverview Runs the Polymer Settings tests. */
 
 /** @const {string} Path to source root. */
 var ROOT_PATH = '../../../../../';
 
 // Polymer BrowserTest fixture.
@@ skipping 152 matching lines @@
 */
 function CrSettingsSiteSettingsTest() {}
 
 CrSettingsSiteSettingsTest.prototype = {
   __proto__: CrSettingsBrowserTest.prototype,
 
   /** @override */
   browsePreload: 'chrome://md-settings/prefs/prefs.html',
 
   /** @override */
-  preLoad: function() {
-    SettingsPageBrowserTest.prototype.preLoad.call(this);
-
-    cr.exportPath('settings_test').siteCategoryNotifyForTest = true;
-    cr.exportPath('settings_test').siteListNotifyForTest = true;
-  },
-
-  /** @override */
   extraLibraries: PolymerTest.getLibraries(ROOT_PATH).concat([
     'site_details_tests.js',
     'site_details_permission_tests.js',
     'site_list_tests.js',
     'site_settings_category_tests.js',
     'test_browser_proxy.js',
     'test_site_settings_prefs_browser_proxy.js',
   ]),
 };
 
@@ skipping 51 matching lines @@
     ROOT_PATH + 'ui/webui/resources/js/promise_resolver.js',
     'test_browser_proxy.js',
     'system_page_tests.js',
   ]),
 };
 
 TEST_F('CrSettingsSystemPageTest', 'Restart', function() {
   mocha.run();
 });
 GEN('#endif');