Reland "Implement random wallpaper feature"

chrome/browser/chromeos/login/user_manager.h

 // Copyright (c) 2012 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_USER_MANAGER_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_USER_MANAGER_H_
 #pragma once
 
 #include <string>
 
+#include "ash/desktop_background/desktop_background_resources.h"
 #include "base/memory/singleton.h"
 #include "chrome/browser/chromeos/login/user.h"
 
 class SkBitmap;
 class FilePath;
 class PrefService;
 
 namespace chromeos {
 
 class RemoveUserDelegate;
@@ skipping 10 matching lines @@
     virtual void LocalStateChanged(UserManager* user_manager) = 0;
 
    protected:
     virtual ~Observer() {}
   };
 
   // A vector pref of the users who have logged into the device.
   static const char kLoggedInUsers[];
 
   // A dictionary that maps usernames to file paths to their wallpapers.
+  // Deprecated. Will remove this const char after done migration.
   static const char kUserWallpapers[];
 
+  // A dictionary that maps usernames to wallpaper properties.
+  static const char kUserWallpapersProperties[];
+
   // A dictionary that maps usernames to file paths to their images.
   static const char kUserImages[];
 
   // A dictionary that maps usernames to the displayed (non-canonical) emails.
   static const char kUserDisplayEmail[];
 
   // A dictionary that maps usernames to OAuth token presence flag.
   static const char kUserOAuthTokenStatus[];
 
   // Returns a shared instance of a UserManager. Not thread-safe, should only be
@@ skipping 88 matching lines @@
                                     const std::string& display_email) = 0;
 
   // Returns the display email for user |username| if it is known (was
   // previously set by a |SaveUserDisplayEmail| call).
   // Otherwise, returns |username| itself.
   virtual std::string GetUserDisplayEmail(
       const std::string& username) const = 0;
 
   // Returns the index of the default wallpapers saved in local state for login
   // user if it is known (was previousely set by |SaveWallpaperToLocalState|
-  // call). Otherwise, returns a randomly generated index.
-  virtual int GetUserWallpaperIndex() = 0;
+  // call). Otherwise, returns the default wallpaper index.
+  virtual int GetLoggedInUserWallpaperIndex() = 0;
 
-  // Save the index |wallpaper_index| of the default wallpapers selected by
-  // current user to Local State.
-  virtual void SaveUserWallpaperIndex(int wallpaper_index) = 0;
+  // Set |type| and |index| to the value saved in local state for logged in
+  // user.
+  virtual void GetLoggedInUserWallpaperProperties(User::WallpaperType& type,
+                                                  int& index) = 0;
+
+  // Save |type| and |index| chose by logged in user to Local State.
+  virtual void SaveLoggedInUserWallpaperProperties(User::WallpaperType type,
+                                                   int index) = 0;
 
   // Sets user image to the default image with index |image_index|, sends
   // LOGIN_USER_IMAGE_CHANGED notification and updates Local State.
   virtual void SaveUserDefaultImageIndex(const std::string& username,
                                          int image_index) = 0;
 
   // Saves image to file, sends LOGIN_USER_IMAGE_CHANGED notification and
   // updates Local State.
   virtual void SaveUserImage(const std::string& username,
                              const SkBitmap& image) = 0;
@@ skipping 52 matching lines @@
   virtual void NotifyLocalStateChanged() = 0;
 
   // Returns the result of the last successful profile image download, if any.
   // Otherwise, returns an empty bitmap.
   virtual const SkBitmap& DownloadedProfileImage() const = 0;
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_USER_MANAGER_H_