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

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

 // Copyright 2014 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_CHROMEOS_LOGIN_ENROLLMENT_ENTERPRISE_ENROLLMENT_HELPER_IMPL_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_ENROLLMENT_ENTERPRISE_ENROLLMENT_HELPER_IMPL_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 68 matching lines @@
   const std::string enrolling_user_domain_;
   bool fetch_additional_token_;
 
   bool started_;
   std::string additional_token_;
   bool finished_;
   bool success_;
   bool auth_data_cleared_;
   std::string oauth_token_;
 
-  scoped_ptr<policy::PolicyOAuth2TokenFetcher> oauth_fetcher_;
+  std::unique_ptr<policy::PolicyOAuth2TokenFetcher> oauth_fetcher_;
 
   base::WeakPtrFactory<EnterpriseEnrollmentHelperImpl> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(EnterpriseEnrollmentHelperImpl);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_ENROLLMENT_ENTERPRISE_ENROLLMENT_HELPER_IMPL_H_