Using random wallpaper until user select one

chrome/browser/chromeos/login/user_manager_impl.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_IMPL_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_USER_MANAGER_IMPL_H_
 #pragma once
 
 #include <string>
 
@@ skipping 212 matching lines @@
   // Cached flag of whether the currently logged-in user existed before this
   // login.
   bool is_current_user_new_;
 
   // Cached flag of whether the currently logged-in user is ephemeral. Storage
   // of persistent information is avoided for such users by not adding them to
   // the user list in local state, not downloading their custom user images and
   // mounting their cryptohomes using tmpfs.
   bool is_current_user_ephemeral_;
 
+  // Cache current user selected index in memory.
+  int current_user_wallpaper_index_;
+
   // The key store for the current user has been loaded. This flag is needed to
   // ensure that the key store will not be loaded twice in the policy recovery
   // "safe-mode".
   bool key_store_loaded_;
   // Cached flag indicating whether ephemeral users are enabled. Defaults to
   // |false| if the value has not been read from trusted device policy yet.
   bool ephemeral_users_enabled_;
 
   // Cached name of device owner. Defaults to empty string if the value has not
   // been read from trusted device policy yet.
@@ skipping 27 matching lines @@
 
   // Data URL for |downloaded_profile_image_|.
   std::string downloaded_profile_image_data_url_;
 
   DISALLOW_COPY_AND_ASSIGN(UserManagerImpl);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_USER_MANAGER_IMPL_H_