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

chrome/browser/chromeos/login/easy_unlock/easy_unlock_refresh_keys_operation.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_EASY_UNLOCK_EASY_UNLOCK_REFRESH_KEYS_OPERATION_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_EASY_UNLOCK_EASY_UNLOCK_REFRESH_KEYS_OPERATION_H_
 
 #include <string>
 
 #include "base/callback.h"
@@ skipping 24 matching lines @@
 
  private:
   void OnKeysCreated(bool success);
   void OnKeysRemoved(bool success);
 
   UserContext user_context_;
   std::string tpm_public_key_;
   EasyUnlockDeviceKeyDataList devices_;
   RefreshKeysCallback callback_;
 
-  scoped_ptr<EasyUnlockCreateKeysOperation> create_keys_operation_;
-  scoped_ptr<EasyUnlockRemoveKeysOperation> remove_keys_operation_;
+  std::unique_ptr<EasyUnlockCreateKeysOperation> create_keys_operation_;
+  std::unique_ptr<EasyUnlockRemoveKeysOperation> remove_keys_operation_;
 
   base::WeakPtrFactory<EasyUnlockRefreshKeysOperation> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(EasyUnlockRefreshKeysOperation);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_EASY_UNLOCK_EASY_UNLOCK_REFRESH_KEYS_OPERATION_H_