Implement the auto-logout on idle feature for Kiosk mode.

chrome/browser/chromeos/kiosk_mode/kiosk_mode_helper.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_KIOSK_MODE_KIOSK_MODE_HELPER_H_
 #define CHROME_BROWSER_CHROMEOS_KIOSK_MODE_KIOSK_MODE_HELPER_H_
 #pragma once
 
 #include <string>
 
@@ skipping 25 matching lines @@
   static KioskModeHelper* Get();
 
   // Initialize the settings helper; this will wait till trust is established
   // for the enterprise policies then call the callback to notify the caller.
   void Initialize(const base::Closure& notify_initialized);
   bool is_initialized() const { return is_initialized_; }
 
   // Getters for various Kiosk Mode values.
   std::string GetScreensaverPath() const;
   int64 GetScreensaverTimeout() const;
+  int64 GetIdleLogoutTimeout() const;
+  int64 GetIdleLogoutWarningTimeout() const;
 
  private:
   friend struct base::DefaultLazyInstanceTraits<KioskModeHelper>;
   KioskModeHelper();
 
   bool is_initialized_;
 
   DISALLOW_COPY_AND_ASSIGN(KioskModeHelper);
 };
 
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_KIOSK_MODE_KIOSK_MODE_HELPER_H_