MD Settings: Hook up about_page to new LifetimeBrowserProxy.

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 69 matching lines @@
 
 CrSettingsAboutPageTest.prototype = {
   __proto__: CrSettingsBrowserTest.prototype,
 
   /** @override */
   browsePreload: 'chrome://md-settings/about_page/about_page.html',
 
   /** @override */
   extraLibraries: CrSettingsBrowserTest.prototype.extraLibraries.concat([
     'test_browser_proxy.js',
+    'test_lifetime_browser_proxy.js',
     'about_page_tests.js',
   ]),
 };
 
 TEST_F('CrSettingsAboutPageTest', 'AboutPage', function() {
   settings_about_page.registerTests();
   mocha.run();
 });
 
 GEN('#if defined(GOOGLE_CHROME_BUILD)');
@@ skipping 469 matching lines @@
 
   /** @override */
   extraLibraries: PolymerTest.getLibraries(ROOT_PATH).concat([
     'radio_group_tests.js',
   ]),
 };
 
 TEST_F('CrSettingsRadioGroupTest', 'All', function() {
   mocha.run();
 });