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

chrome/browser/chromeos/kiosk_mode/kiosk_mode_helper.cc

 // 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.
 
 #include "chrome/browser/chromeos/kiosk_mode/kiosk_mode_helper.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/lazy_instance.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/chromeos/kiosk_mode/kiosk_mode_screensaver.h"
 #include "chrome/browser/policy/cloud_policy_constants.h"
 #include "chrome/browser/policy/browser_policy_connector.h"
 #include "chrome/common/chrome_switches.h"
 
 namespace {
 
 const int64 kScreensaverIdleTimeout = 60;
+const int64 kLoginIdleTimeout = 100;
+const int64 kLoginIdleCountdownTimeout = 20;
 
 }  // namespace
 
 namespace chromeos {
 
 static base::LazyInstance<KioskModeHelper> g_kiosk_mode_helper =
     LAZY_INSTANCE_INITIALIZER;
 
 // static
 bool KioskModeHelper::IsKioskModeEnabled() {
@@ skipping 28 matching lines @@
       GetSwitchValueASCII(switches::kKioskModeScreensaverPath);
 }
 
 int64 KioskModeHelper::GetScreensaverTimeout() const {
   if (!is_initialized_)
     return -1;
 
   return kScreensaverIdleTimeout;
 }
 
+int64 KioskModeHelper::GetIdleLogoutTimeout() const {
+  if (!is_initialized_)
+    return -1;
+
+  return kLoginIdleTimeout;
+}
+int64 KioskModeHelper::GetIdleLogoutWarningTimeout() const {
+  if (!is_initialized_)
+    return -1;
+
+  return kLoginIdleCountdownTimeout;
+}
+
+
 KioskModeHelper::KioskModeHelper() : is_initialized_(false) {
 }
 
 }  // namespace chromeos