MD Settings: Eliminate SettingsSubpageBrowsertest.

chrome/browser/resources/settings/settings_menu/settings_menu.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-menu' shows a menu with a hardcoded set of pages and subpages.
  */
 Polymer({
   is: 'settings-menu',
 
   behaviors: [settings.RouteObserverBehavior],
 
   properties: {
     advancedOpened: {
       type: Boolean,
       notify: true,
     },
 
     /**
      * Dictionary defining page visibility.
      * @type {!GuestModePageVisibility}
      */
-    pageVisibility: {
-      type: Object,
-    },
+    pageVisibility: Object,
   },
 
   listeners: {
     'topMenu.tap': 'onLinkTap_',
     'subMenu.tap': 'onLinkTap_',
   },
 
   /** @param {!settings.Route} newRoute */
   currentRouteChanged: function(newRoute) {
     var currentPath = newRoute.path;
@@ skipping 46 matching lines @@
 
   /**
    * @param {boolean} opened Whether the menu is expanded.
    * @return {string} Which icon to use.
    * @private
    * */
   arrowState_: function(opened) {
     return opened ? 'cr:arrow-drop-up' : 'cr:arrow-drop-down';
   },
 });