Lock screen for Chrome-Athena

athena/screen_lock/screen_lock_manager_base.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 ATHENA_SCREEN_LOCK_SCREEN_LOCK_MANAGER_BASE_H_
+#define ATHENA_SCREEN_LOCK_SCREEN_LOCK_MANAGER_BASE_H_
+
+#include "athena/screen_lock/public/screen_lock_manager.h"
+#include "base/macros.h"
+
+namespace athena {
+
+// Base class for ScreenLockManager implementations. Its c-tors remembers
+// instance pointer in global static variable for ScreenLockManager::Get
+// implementation and d-tor clears that global variable.
+class ScreenLockManagerBase : public ScreenLockManager {
+ public:
+  ScreenLockManagerBase();
+
+ protected:
+  virtual ~ScreenLockManagerBase();
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(ScreenLockManagerBase);
+};
+
+}  // namespace athena
+
+#endif  // ATHENA_SCREEN_LOCK_SCREEN_LOCK_MANAGER_BASE_H_