Restore to user selected wallpaper after browser crash

chrome/browser/chromeos/login/user_manager_impl.cc

 // 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.
 
 #include "chrome/browser/chromeos/login/user_manager_impl.h"
 
 #include <vector>
 
 #include "ash/shell.h"
 #include "ash/desktop_background/desktop_background_controller.h"
@@ skipping 905 matching lines @@
 void UserManagerImpl::SaveWallpaperDefaultIndex(const std::string& username,
                                                 int wallpaper_index) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 
   PrefService* local_state = g_browser_process->local_state();
   DictionaryPrefUpdate wallpapers_update(local_state,
                                          UserManager::kUserWallpapers);
   wallpapers_update->SetWithoutPathExpansion(username,
       new base::FundamentalValue(wallpaper_index));
   ash::Shell::GetInstance()->desktop_background_controller()->
-      OnDesktopBackgroundChanged(wallpaper_index);
+      OnDesktopBackgroundChanged();
 }
 
 void UserManagerImpl::SetUserImage(const std::string& username,
                                    int image_index,
                                    const SkBitmap& image) {
   User* user = const_cast<User*>(FindUser(username));
   // User may have been removed by now.
   if (user) {
     // For existing users, a valid image index should have been set upon loading
     // them from Local State.
@@ skipping 275 matching lines @@
     BrowserThread::PostTask(
         BrowserThread::FILE,
         FROM_HERE,
         base::Bind(&UserManagerImpl::DeleteUserImage,
                    base::Unretained(this),
                    image_path));
   }
 }
 
 }  // namespace chromeos