Revert of Flag covering Rollback removed.

chrome/browser/ui/webui/chromeos/login/reset_screen_handler.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_UI_WEBUI_CHROMEOS_LOGIN_RESET_SCREEN_HANDLER_H_
 #define CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_RESET_SCREEN_HANDLER_H_
 
 #include "base/compiler_specific.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
@@ skipping 38 matching lines @@
   static void RegisterPrefs(PrefRegistrySimple* registry);
 
  private:
   // JS messages handlers.
   void HandleOnCancel();
   void HandleOnRestart(bool should_rollback);
   void HandleOnPowerwash(bool rollback_checked);
   void HandleOnLearnMore();
 
   void ChooseAndApplyShowScenario();
+  void OnRollbackFlagFileCheckDone(scoped_ptr<bool> file_exists);
   void ShowWithParams();
 
   Delegate* delegate_;
 
   // Help application used for help dialogs.
   scoped_refptr<HelpAppLauncher> help_app_;
 
   // Keeps whether screen should be shown right after initialization.
   bool show_on_init_;
 
@@ skipping 12 matching lines @@
   bool preparing_for_rollback_;
 
   base::WeakPtrFactory<ResetScreenHandler> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ResetScreenHandler);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_RESET_SCREEN_HANDLER_H_