MD Settings: cr/cros - Guest mode page visibility

chrome/browser/resources/settings/appearance_page/appearance_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.
 
 /**
  * 'settings-appearance-page' is the settings page containing appearance
  * settings.
  *
  * Example:
  *
@@ skipping 89 matching lines @@
         {value: 175, name: '175%'},
         {value: 200, name: '200%'},
         {value: 300, name: '300%'},
         {value: 400, name: '400%'},
         {value: 500, name: '500%'},
       ],
     },
 
     /** @private */
     themeSublabel_: String,
+
+    /**
+     * Dictionary defining page visibility.
+     * @type {!AppearancePageVisibility}
+     */
+    pageVisibility: Object,
   },
 
   observers: [
     'themeChanged_(prefs.extensions.theme.id.value)',
     'zoomLevelChanged_(defaultZoomLevel_.value)',
   ],
 
   created: function() {
     this.browserProxy_ = settings.AppearanceBrowserProxyImpl.getInstance();
   },
@@ skipping 93 matching lines @@
   /**
    * @param {number} percent The integer percentage of the page zoom.
    * @private
    */
   zoomLevelChanged_: function(percent) {
     // The |percent| may be undefined on startup.
     if (percent === undefined)
       return;
     chrome.settingsPrivate.setDefaultZoomPercent(percent);
   },
+
+  /**
+   * @param {boolean} bookmarksBarVisible if bookmarks bar option is visible.
+   * @return {string} 'first' if the argument is false or empty otherwise.
+   * @private
+   */
+  getFirst_: function(bookmarksBarVisible) {
+    return !bookmarksBarVisible ? 'first' : '';
+  }
 });