Sync online wallpaper

chrome/browser/resources/chromeos/wallpaper_manager/js/constants.js

 // Copyright (c) 2013 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.
 
 
 /** @const */ var Constants = {
   /**
    * Key to access wallpaper rss in chrome.local.storage.
    */
   AccessRssKey: 'wallpaper-picker-surprise-rss-key',
 
   /**
    * Key to access wallpaper manifest in chrome.local.storage.
    */
   AccessManifestKey: 'wallpaper-picker-manifest-key',
 
   /**
+   * Key to access user wallpaper info in chrome.storage.sync
+   */
+  AccessWallpaperInfoKey: 'wallpaper-info-key',
+
+  /**
    * Key to access last changed date of a surprise wallpaper.
    */
   AccessLastSurpriseWallpaperChangedDate: 'wallpaper-last-changed-date-key',
 
   /**
    * Key to access if surprise me feature is enabled or not in
    * chrome.local.storage.
    */
   AccessSurpriseMeEnabledKey: 'surprise-me-enabled-key',
 
@@ skipping 19 matching lines @@
    */
   WallpaperSourceEnum: {
       Online: 'ONLINE',
       Custom: 'CUSTOM',
       AddNew: 'ADDNEW'
   },
 
   /**
    * Local storage.
    */
-  WallpaperLocalStorage: chrome.storage.local
+  WallpaperLocalStorage: chrome.storage.local,
+
+  /**
+   * Sync storage.
+   */
+  WallpaperSyncStorage: chrome.storage.sync
 };