MD Settings: fix improper use of prefs in tests

chrome/test/data/webui/settings/on_startup_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 Polymer OnStartup Settings tests. */
 
 GEN_INCLUDE(['settings_page_browsertest.js']);
 
 /**
   * Radio button enum values for restore on startup.
@@ skipping 34 matching lines @@
    */
   var settingsPrefs;
   var self = this;
 
   var restoreOnStartup = function() {
     return self.getPageElement('#onStartupRadioGroup').querySelector(
         '.iron-selected').textContent.trim();
   };
 
   suite('OnStartupHandler', function() {
-    var fakePrefs = [{
-      key: 'session.restore_on_startup',
-      type: chrome.settingsPrivate.PrefType.NUMBER,
-      value: 1234,
-    }];
-
     suiteSetup(function() {
       settingsPrefs = document.querySelector('cr-settings').$$(
           'settings-prefs');
       assertTrue(!!settingsPrefs);
-      CrSettingsPrefs.resetForTesting();
-      settingsPrefs.resetForTesting();
-      var fakeApi = new settings.FakeSettingsPrivate(fakePrefs);
-      settingsPrefs.initializeForTesting(fakeApi);
       return CrSettingsPrefs.initialized;
     });
 
     test('open-continue', function() {
       settingsPrefs.set('prefs.session.restore_on_startup.value',
           RestoreOnStartupEnum.CONTINUE);
       assertEquals('Continue where you left off', restoreOnStartup());
     });
 
     test('open-ntp', function() {
       settingsPrefs.set('prefs.session.restore_on_startup.value',
           RestoreOnStartupEnum.OPEN_NEW_TAB);
       assertEquals('Open the New Tab page', restoreOnStartup());
     });
 
     test('open-specific', function() {
       settingsPrefs.set('prefs.session.restore_on_startup.value',
           RestoreOnStartupEnum.OPEN_SPECIFIC);
       assertEquals('Open a specific page or set of pages', restoreOnStartup());
     });
   });
   mocha.run();
 });