cros: Create cryptohome keys for Easy sign-in.

chrome/browser/chromeos/login/easy_unlock/easy_unlock_remove_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_REMOVE_KEYS_OPERATION_H_
+#define CHROME_BROWSER_CHROMEOS_LOGIN_EASY_UNLOCK_EASY_UNLOCK_REMOVE_KEYS_OPERATION_H_
+
+#include "base/callback.h"
+#include "base/macros.h"
+#include "base/memory/weak_ptr.h"
+#include "chromeos/login/auth/user_context.h"
+#include "third_party/cros_system_api/dbus/service_constants.h"
+
+namespace chromeos {
+
+class UserContext;
+
+// A class to remove existing Easy unlock cryptohome keys starting at given
+// index.
+class EasyUnlockRemoveKeysOperation {
+ public:
+  typedef base::Callback<void (bool success)> RemoveKeysCallback;
+  EasyUnlockRemoveKeysOperation(
+      const UserContext& user_context,
+      size_t start_index,
+      const RemoveKeysCallback& callback);
+  ~EasyUnlockRemoveKeysOperation();
+
+  void Start();
+
+ private:
+  void RemoveKey();
+  void OnKeyRemoved(bool success, cryptohome::MountError return_code);
+
+  UserContext user_context_;
+  RemoveKeysCallback callback_;
+  size_t key_index_;
+  base::WeakPtrFactory<EasyUnlockRemoveKeysOperation> weak_ptr_factory_;
+
+  DISALLOW_COPY_AND_ASSIGN(EasyUnlockRemoveKeysOperation);
+};
+
+}  // namespace chromeos
+
+#endif  // CHROME_BROWSER_CHROMEOS_LOGIN_EASY_UNLOCK_EASY_UNLOCK_REMOVE_KEYS_OPERATION_H_