Revert of Clean up Smart Lock cryptohome keys logic:

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"
-#include "base/macros.h"
-#include "base/memory/weak_ptr.h"
-#include "chrome/browser/chromeos/login/easy_unlock/easy_unlock_types.h"
-#include "chromeos/login/auth/user_context.h"
-
-namespace chromeos {
-
-class EasyUnlockCreateKeysOperation;
-class EasyUnlockRemoveKeysOperation;
-class UserContext;
-
-// The refresh keys operation replaces the existing keys in cryptohome with a
-// new list of keys. This operation is a simple sequence of the create and
-// remove keys operations.
-class EasyUnlockRefreshKeysOperation {
- public:
-  typedef base::Callback<void(bool success)> RefreshKeysCallback;
-  EasyUnlockRefreshKeysOperation(const UserContext& user_context,
-                                 const std::string& tpm_public_key,
-                                 const EasyUnlockDeviceKeyDataList& devices,
-                                 const RefreshKeysCallback& callback);
-  ~EasyUnlockRefreshKeysOperation();
-
-  void Start();
-
- 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_;
-
-  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_