Lock screen for Chrome-Athena

athena/screen_lock/public/screen_lock_manager.h

Index: athena/screen_lock/public/screen_lock_manager.h
diff --git a/athena/screen_lock/public/screen_lock_manager.h b/athena/screen_lock/public/screen_lock_manager.h
new file mode 100644
index 0000000000000000000000000000000000000000..bde787daec3087e0c782e46c3c7ab37f9f994f30
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+++ b/athena/screen_lock/public/screen_lock_manager.h
@@ -0,0 +1,28 @@
+// 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_PUBLIC_SCREEN_LOCK_MANAGER_H_
+#define ATHENA_SCREEN_LOCK_PUBLIC_SCREEN_LOCK_MANAGER_H_
+
+namespace athena {
+
+// Manages screen lock and register keyboard shortcuts.
+class ScreenLockManager {
+ public:
+  // Creates, returns and deletes the singleton object of the ScreenLockManager
+  // implementation.
+  static ScreenLockManager* Create();
+  static ScreenLockManager* Get();
+  static void Shutdown();
+
+  virtual void LockScreen() = 0;
+
+ protected:
+  // Make d-tor protected to prevent destruction without calling Shutdown.
+  virtual ~ScreenLockManager() {}
+};
+
+}  // namespace athena
+
+#endif  // ATHENA_SCREEN_LOCK_PUBLIC_SCREEN_LOCK_MANAGER_H_