Fix for flag-file covering Rollback reset option.

chrome/browser/ui/webui/chromeos/login/reset_screen_handler.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/ui/webui/chromeos/login/reset_screen_handler.h"
 
 #include <string>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 122 matching lines @@
           FROM_HERE,
           checkfile_closure,
           on_check_done)) {
     LOG(WARNING) << "Failed to check flag file for Rollback reset option";
     on_check_done.Run();
   }
 }
 
 void ResetScreenHandler::OnRollbackFlagFileCheckDone(
     scoped_ptr<bool> file_exists) {
-  if (!file_exists && !CommandLine::ForCurrentProcess()->HasSwitch(
+  if (!(*file_exists) && !CommandLine::ForCurrentProcess()->HasSwitch(
           switches::kEnableRollbackOption)) {
     rollback_available_ = false;
     ShowWithParams();
   } else if (!restart_required_ && reboot_was_requested_) {
     // First exec after boot.
     PrefService* prefs = g_browser_process->local_state();
     rollback_available_ = prefs->GetBoolean(prefs::kRollbackRequested);
     ShowWithParams();
   } else {
     chromeos::DBusThreadManager::Get()->GetUpdateEngineClient()->
@@ skipping 128 matching lines @@
     base::DictionaryValue params;
     params.SetInteger("uiState", kErrorUIStateRollback);
     ShowScreen(OobeUI::kScreenErrorMessage, &params);
   } else if (status.status ==
       UpdateEngineClient::UPDATE_STATUS_UPDATED_NEED_REBOOT) {
     DBusThreadManager::Get()->GetPowerManagerClient()->RequestRestart();
   }
 }
 
 }  // namespace chromeos