MD Settings: fix improper use of prefs in tests

chrome/test/data/webui/settings/appearance_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 Appearance Settings elements. */
 
 GEN_INCLUDE(['settings_page_browsertest.js']);
 
 /**
  * Test Polymer Appearance Settings elements.
@@ skipping 24 matching lines @@
    */
   var settingsPrefs;
   var self = this;
 
   var fontSize = function() {
     return self.appearancePage(
         '#defaultFontSize').$$('[class=iron-selected]').textContent.trim();
   };
 
   suite('AppearanceHandler', function() {
-    var fakePrefs = [{
-      key: 'webkit.webprefs.default_font_size',
-      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('very small font', function() {
       settingsPrefs.set('prefs.webkit.webprefs.default_font_size.value', 9);
       assertEquals('Very small', fontSize());
     });
 
     test('large font', function() {
       settingsPrefs.set('prefs.webkit.webprefs.default_font_size.value', 20);
       assertEquals('Large', fontSize());
     });
 
     /**
      * If the font size is not one of the preset options (e.g. 16, 20, etc.)
      * then the menu label will be 'Custom' (rather than 'Medium', 'Large',
      * etc.).
      */
     test('custom font size', function() {
       settingsPrefs.set(
-          'prefs.webkit.webprefs.default_font_size', 19);
+          'prefs.webkit.webprefs.default_font_size.value', 19);
       assertEquals('Custom', fontSize());
     });
   });
   mocha.run();
 });