Implement user selected wallpaper feature.

chrome/browser/chromeos/login/user_manager.h

Index: chrome/browser/chromeos/login/user_manager.h
diff --git a/chrome/browser/chromeos/login/user_manager.h b/chrome/browser/chromeos/login/user_manager.h
index 7e9f6d14191b5d700201d6873edb05ff990a41e4..c5f46cc4bac8cc9920ee52f8702996f26cadc874 100644
--- a/chrome/browser/chromeos/login/user_manager.h
+++ b/chrome/browser/chromeos/login/user_manager.h
@@ -11,6 +11,7 @@
 #include "ash/desktop_background/desktop_background_resources.h"
 #include "base/memory/singleton.h"
 #include "chrome/browser/chromeos/login/user.h"
+#include "chrome/browser/ui/webui/options2/chromeos/set_wallpaper_options_handler2.h"
 
 class SkBitmap;
 class FilePath;
@@ -175,11 +176,23 @@ class UserManager {
   virtual void SaveUserImage(const std::string& username,
                              const SkBitmap& image) = 0;
 
+  // Update custom wallpaper to selected layout and saves layout to Local

[flackr, 2012/05/09 21:26:16]

s/Update/Updates

[bshe, 2012/05/10 16:10:26]

Done.

+  // State.
+  virtual void SetLoggedInUserCustomWallpaperLayout(
+      ash::WallpaperLayout layout) = 0;
+
   // Tries to load user image from disk; if successful, sets it for the user,
   // sends LOGIN_USER_IMAGE_CHANGED notification and updates Local State.
   virtual void SaveUserImageFromFile(const std::string& username,
                                      const FilePath& path) = 0;
 
+  // Tries to load user image from disk; if successful, sets it for the user,
+  // and updates Local State.
+  virtual void SaveUserWallpaperFromFile(const std::string& username,
+                                         const FilePath& path,
+                                         ash::WallpaperLayout layout,
+                                         WallpaperDelegate* delegate) = 0;
+
   // Sets profile image as user image for |username|, sends
   // LOGIN_USER_IMAGE_CHANGED notification and updates Local State. If the user
   // is not logged-in or the last |DownloadProfileImage| call has failed, a