Add scale to settings-slider

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 @@
   /** @override */
   browsePreload: 'chrome://md-settings/controls/settings_slider.html',
 
   /** @override */
   extraLibraries: CrSettingsBrowserTest.prototype.extraLibraries.concat([
     'settings_slider_tests.js',
   ]),
 };
 
 TEST_F('CrSettingsSliderTest', 'All', function() {
-  settings_slider.registerTests();
   mocha.run();
 });
 
 /**
  * @constructor
  * @extends {CrSettingsBrowserTest}
  */
 function CrSettingsToggleButtonTest() {}
 
 CrSettingsToggleButtonTest.prototype = {
@@ skipping 1549 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();
 });