MD Settings: Remove unnecessary importHtml() calls in 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 632 matching lines @@
  * Test fixture for chrome/browser/resources/settings/site_settings/.
  * @constructor
  * @extends {CrSettingsBrowserTest}
  */
 function CrSettingsSiteSettingsTest() {}
 
 CrSettingsSiteSettingsTest.prototype = {
   __proto__: CrSettingsBrowserTest.prototype,
 
   /** @override */
-  browsePreload: 'chrome://md-settings/prefs/prefs.html',
+  browsePreload: 'chrome://md-settings/privacy_page/privacy_page.html',
 
   /** @override */
   extraLibraries: CrSettingsBrowserTest.prototype.extraLibraries.concat([
     'category_default_setting_tests.js',
     'category_setting_exceptions_tests.js',
     'site_details_tests.js',
     'site_details_permission_tests.js',
     'site_list_tests.js',
     'test_browser_proxy.js',
     'test_site_settings_prefs_browser_proxy.js',
@@ skipping 534 matching lines @@
   extraLibraries: CrSettingsBrowserTest.prototype.extraLibraries.concat([
     'test_browser_proxy.js',
     'test_extension_control_browser_proxy.js',
     'extension_controlled_indicator_tests.js',
   ]),
 };
 
 TEST_F('CrSettingsExtensionControlledIndicatorTest', 'All', function() {
   mocha.run();
 });