Convert //chrome/browser/ui from scoped_ptr to std::unique_ptr

chrome/browser/ui/webui/chromeos/login/enrollment_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_ENROLLMENT_SCREEN_HANDLER_H_
 #define CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_ENROLLMENT_SCREEN_HANDLER_H_
 
+#include <memory>
 #include <string>
 
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
 #include "chrome/browser/chromeos/login/enrollment/enrollment_screen_actor.h"
 #include "chrome/browser/chromeos/login/enrollment/enterprise_enrollment_helper.h"
 #include "chrome/browser/chromeos/login/screens/network_error_model.h"
 #include "chrome/browser/chromeos/policy/enrollment_config.h"
 #include "chrome/browser/ui/webui/chromeos/login/base_screen_handler.h"
 #include "chrome/browser/ui/webui/chromeos/login/network_state_informer.h"
 #include "net/base/net_errors.h"
 
 namespace chromeos {
 
@@ skipping 90 matching lines @@
 
   // Whether we should handle network errors on enrollment screen.
   // True when signin screen step is shown.
   bool observe_network_failure_;
 
   // Network state informer used to keep signin screen up.
   scoped_refptr<NetworkStateInformer> network_state_informer_;
 
   NetworkErrorModel* network_error_model_;
 
-  scoped_ptr<ErrorScreensHistogramHelper> histogram_helper_;
+  std::unique_ptr<ErrorScreensHistogramHelper> histogram_helper_;
 
   // Help application used for help dialogs.
   scoped_refptr<HelpAppLauncher> help_app_;
 
   base::WeakPtrFactory<EnrollmentScreenHandler> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(EnrollmentScreenHandler);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_ENROLLMENT_SCREEN_HANDLER_H_