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

chrome/browser/chromeos/login/enrollment/enrollment_screen.h

Index: chrome/browser/chromeos/login/enrollment/enrollment_screen.h
diff --git a/chrome/browser/chromeos/login/enrollment/enrollment_screen.h b/chrome/browser/chromeos/login/enrollment/enrollment_screen.h
index 998ed9264a0e381d546a47dcde3a363c9e6004a4..4753d7db28f2c0cec80c7b72d710cd40f42af2bd 100644
--- a/chrome/browser/chromeos/login/enrollment/enrollment_screen.h
+++ b/chrome/browser/chromeos/login/enrollment/enrollment_screen.h
@@ -5,13 +5,13 @@
 #ifndef CHROME_BROWSER_CHROMEOS_LOGIN_ENROLLMENT_ENROLLMENT_SCREEN_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_ENROLLMENT_ENROLLMENT_SCREEN_H_
 
+#include <memory>
 #include <string>
 
 #include "base/callback_forward.h"
 #include "base/compiler_specific.h"
 #include "base/gtest_prod_util.h"
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "chrome/browser/chromeos/login/enrollment/enrollment_screen_actor.h"
 #include "chrome/browser/chromeos/login/enrollment/enterprise_enrollment_helper.h"
@@ -127,8 +127,8 @@ class EnrollmentScreen
   policy::EnrollmentConfig enrollment_config_;
   bool enrollment_failed_once_;
   std::string enrolling_user_domain_;
-  scoped_ptr<base::ElapsedTimer> elapsed_timer_;
-  scoped_ptr<EnterpriseEnrollmentHelper> enrollment_helper_;
+  std::unique_ptr<base::ElapsedTimer> elapsed_timer_;
+  std::unique_ptr<EnterpriseEnrollmentHelper> enrollment_helper_;
   base::WeakPtrFactory<EnrollmentScreen> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(EnrollmentScreen);