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

chrome/browser/ui/webui/chromeos/login/gaia_screen_handler.h

 // Copyright 2013 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_GAIA_SCREEN_HANDLER_H_
 #define CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_GAIA_SCREEN_HANDLER_H_
 
 #include <string>
 
 #include "base/command_line.h"
@@ skipping 217 matching lines @@
   std::string test_pass_;
   bool test_expects_complete_login_ = false;
 
   // True if Easy bootstrap is enabled.
   bool use_easy_bootstrap_ = false;
 
   // True if proxy doesn't allow access to google.com/generate_204.
   NetworkPortalDetector::CaptivePortalStatus captive_portal_status_ =
       NetworkPortalDetector::CAPTIVE_PORTAL_STATUS_ONLINE;
 
-  scoped_ptr<NetworkPortalDetector> network_portal_detector_;
+  std::unique_ptr<NetworkPortalDetector> network_portal_detector_;
   bool disable_restrictive_proxy_check_for_test_ = false;
 
   // Non-owning ptr to SigninScreenHandler instance. Should not be used
   // in dtor.
   // TODO (antrim@): GaiaScreenHandler shouldn't communicate with
   // signin_screen_handler directly.
   SigninScreenHandler* signin_screen_handler_ = nullptr;
 
   // True if offline GAIA is active.
   bool offline_login_is_active_ = false;
 
   // True if the authentication extension is still loading.
   bool auth_extension_being_loaded_ = false;
 
   base::WeakPtrFactory<GaiaScreenHandler> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(GaiaScreenHandler);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_GAIA_SCREEN_HANDLER_H_