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

chrome/browser/chromeos/policy/user_policy_test_helper.h

 // Copyright 2015 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_POLICY_USER_POLICY_TEST_HELPER_H_
 #define CHROME_BROWSER_CHROMEOS_POLICY_USER_POLICY_TEST_HELPER_H_
 
+#include <memory>
 #include <string>
 
 #include "base/files/scoped_temp_dir.h"
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
 
 class Profile;
 
 namespace base {
 class CommandLine;
 class FilePath;
 class DictionaryValue;
 }
 
 namespace policy {
@@ skipping 28 matching lines @@
 
   void DeletePolicyFile();
 
  private:
   void WritePolicyFile(const base::DictionaryValue& mandatory,
                        const base::DictionaryValue& recommended);
   base::FilePath PolicyFilePath() const;
 
   const std::string account_id_;
   base::ScopedTempDir temp_dir_;
-  scoped_ptr<LocalPolicyTestServer> test_server_;
+  std::unique_ptr<LocalPolicyTestServer> test_server_;
 
   DISALLOW_COPY_AND_ASSIGN(UserPolicyTestHelper);
 };
 
 }  // namespace policy
 
 #endif  // CHROME_BROWSER_CHROMEOS_POLICY_USER_POLICY_TEST_HELPER_H_