MD Settings: implement "RESTART" button for hardware acceleration to take effect

chrome/browser/resources/settings/advanced_page/advanced_page.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
  * 'settings-advanced-page' is the settings page containing the advanced
  * settings.
  *
  * Example:
@@ skipping 27 matching lines @@
     },
   },
 
   /**
    * @type {string} Selector to get the sections.
    * TODO(michaelpg): replace duplicate docs with @override once b/24294625
    * is fixed.
    */
   sectionSelector: 'settings-section',
 
-<if expr="not chromeos">
-  listeners: {
-    'dom-change': 'onDomChange_',
-  },
-</if>
-
   /** @override */
   attached: function() {
     /** @override */
     this.scroller = this.parentElement;
   },
-
-<if expr="not chromeos">
-  /** @private */
-  onDomChange_: function() {
-    var systemPage = /** @type {?SettingsSystemPageElement} */(
-        this.$$('settings-system-page'));
-    if (systemPage && !systemPage.delegate)
-      systemPage.delegate = new settings.SystemPageDelegateImpl;
-  },
-</if>
 });