Implement restart on Idle for Kiosk Mode.

chrome/browser/chromeos/retail_mode/retail_mode_screen_locker.h

+// Copyright (c) 2012 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_RETAIL_MODE_RETAIL_MODE_SCREEN_LOCKER_H_
+#define CHROME_BROWSER_CHROMEOS_RETAIL_MODE_RETAIL_MODE_SCREEN_LOCKER_H_
+#pragma once
+
+#include "base/time.h"
+#include "base/timer.h"
+
+namespace browser {
+
+// Shows or closes the logout dialog for Kiosk Mode.
+void ShowRetailModeLogoutDialog();
+void CloseRetailModeLogoutDialog();
+
+}  // namespace browser
+
+namespace chromeos {
+
+class RetailModeScreenLocker {
+ public:
+  static void InitClass();
+
+ private:
+  RetailModeScreenLocker() {}
+
+  base::RepeatingTimer<RetailModeScreenLocker> slow_timer_;
+  base::RepeatingTimer<RetailModeScreenLocker> fast_timer_;
+
+  DISALLOW_COPY_AND_ASSIGN(RetailModeScreenLocker);
+};
+
+}  // namespace chromeos
+
+#endif  // CHROME_BROWSER_CHROMEOS_RETAIL_MODE_RETAIL_MODE_SCREEN_LOCKER_H_