Show invisible user on login screen if there is space after other user removal

chrome/browser/chromeos/login/existing_user_controller.h

 // Copyright (c) 2010 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_EXISTING_USER_CONTROLLER_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_EXISTING_USER_CONTROLLER_H_
 #pragma once
 
 #include <string>
 #include <vector>
@@ skipping 118 matching lines @@
   // Send message to window manager to enable/disable click on other windows.
   void SendSetLoginState(bool is_login);
 
   // Bounds of the background window.
   const gfx::Rect background_bounds_;
 
   // Background window/view.
   views::Widget* background_window_;
   BackgroundView* background_view_;
 
-  // The set of UserControllers.
+  // The set of visible UserControllers.
   std::vector<UserController*> controllers_;
 
+  // The set of invisible UserControllers.
+  std::vector<UserController*> invisible_controllers_;
+
   // Used to execute login operations.
   scoped_ptr<LoginPerformer> login_performer_;
 
   // Index of selected view (user).
   size_t selected_view_index_;
 
   // Number of login attempts. Used to show help link when > 1 unsuccessful
   // logins for the same user.
   size_t num_login_attempts_;
 
@@ skipping 19 matching lines @@
 
   // Factory of callbacks.
   ScopedRunnableMethodFactory<ExistingUserController> method_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ExistingUserController);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_EXISTING_USER_CONTROLLER_H_