Disabled flaky CrSettingsPrivacyPageTest.PrivacyPage test

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 424 matching lines @@
   browsePreload: 'chrome://md-settings/privacy_page/privacy_page.html',
 
   /** @override */
   extraLibraries: CrSettingsBrowserTest.prototype.extraLibraries.concat([
     ROOT_PATH + 'ui/webui/resources/js/promise_resolver.js',
     'test_browser_proxy.js',
     'privacy_page_test.js',
   ]),
 };
 
-TEST_F('CrSettingsPrivacyPageTest', 'PrivacyPage', function() {
+// TODO(crbug.com/642574) Disabled because test is flaky.
+TEST_F('CrSettingsPrivacyPageTest', 'DISABLED_PrivacyPage', function() {
   settings_privacy_page.registerTests();
   mocha.run();
 });
 
 /**
  * Test fixture for chrome/browser/resources/settings/site_settings/.
  * @constructor
  * @extends {CrSettingsBrowserTest}
 */
 function CrSettingsSiteSettingsTest() {}
@@ skipping 358 matching lines @@
     'test_browser_proxy.js',
     'metrics_reporting_tests.js',
   ]),
 };
 
 TEST_F('CrSettingsMetricsReportingTest', 'All', function() {
   mocha.run();
 });
 
 GEN('#endif');