Ensure public account policy wallpaper is stored in correct place.

chrome/browser/chromeos/login/users/wallpaper/wallpaper_manager.h

 // Copyright 2014 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.
 
 #ifndef CHROME_BROWSER_CHROMEOS_LOGIN_USERS_WALLPAPER_WALLPAPER_MANAGER_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_USERS_WALLPAPER_WALLPAPER_MANAGER_H_
 
 #include <deque>
 #include <string>
 #include <vector>
@@ skipping 244 matching lines @@
   void InitializeWallpaper();
 
   // NotificationObserver overrides:
   virtual void Observe(int type,
                        const content::NotificationSource& source,
                        const content::NotificationDetails& details) OVERRIDE;
 
   // Removes all |user_id| related wallpaper info and saved wallpapers.
   void RemoveUserWallpaperInfo(const std::string& user_id);
 
+  // Calls SetCustomWallpaper() with |user_id_hash| received from cryptohome.
+  void SetCustomWallpaperOnSanitizedUsername(const std::string& user_id,
+                                             const gfx::ImageSkia& image,
+                                             bool update_wallpaper,
+                                             bool cryptohome_success,
+                                             const std::string& user_id_hash);
+
   // Saves custom wallpaper to file, post task to generate thumbnail and updates
   // local state preferences. If |update_wallpaper| is false, don't change
   // wallpaper but only update cache.
   void SetCustomWallpaper(const std::string& user_id,
                           const std::string& user_id_hash,
                           const std::string& file,
                           ash::WallpaperLayout layout,
                           user_manager::User::WallpaperType type,
                           const gfx::ImageSkia& image,
                           bool update_wallpaper);
@@ skipping 343 matching lines @@
 
   // Current decoded default image is stored in cache.
   scoped_ptr<user_manager::UserImage> default_wallpaper_image_;
 
   DISALLOW_COPY_AND_ASSIGN(WallpaperManager);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_USERS_WALLPAPER_WALLPAPER_MANAGER_H_