app_mode: Add runtime.onRestartRequired event.

chrome/browser/chromeos/system/automatic_reboot_manager.h

 // Copyright (c) 2013 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_SYSTEM_AUTOMATIC_REBOOT_MANAGER_H_
 #define CHROME_BROWSER_CHROMEOS_SYSTEM_AUTOMATIC_REBOOT_MANAGER_H_
 
 #include "ash/wm/user_activity_observer.h"
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
+#include "base/observer_list.h"
 #include "base/prefs/pref_change_registrar.h"
 #include "base/time.h"
 #include "base/timer.h"
 #include "chromeos/dbus/power_manager_client.h"
 #include "chromeos/dbus/update_engine_client.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 
 class PrefRegistrySimple;
 
 namespace base {
 class TickClock;
 }
 
 namespace chromeos {
 namespace system {
 
+class AutomaticRebootManagerObserver;
+
 // Schedules and executes automatic reboots.
 //
 // Automatic reboots may be scheduled for any number of reasons. Currently, the
 // following are implemented:
 // * When Chrome OS has applied a system update, a reboot may become necessary
 //   to complete the update process. If the policy to automatically reboot after
 //   an update is enabled, a reboot is scheduled at that point.
 // * If an uptime limit is set through policy, a reboot is scheduled when the
 //   device's uptime reaches the limit. Time spent sleeping counts as uptime as
 //   well.
@@ skipping 43 matching lines @@
     bool has_boot_time;
     base::TimeTicks boot_time;
 
     bool has_update_reboot_needed_time;
     base::TimeTicks update_reboot_needed_time;
   };
 
   explicit AutomaticRebootManager(scoped_ptr<base::TickClock> clock);
   virtual ~AutomaticRebootManager();
 
+  void AddObserver(AutomaticRebootManagerObserver* observer);
+  void RemoveObserver(AutomaticRebootManagerObserver* observer);
+
   // PowerManagerClient::Observer:
   virtual void SystemResumed(const base::TimeDelta& sleep_duration) OVERRIDE;
 
   // UpdateEngineClient::Observer:
   virtual void UpdateStatusChanged(
       const UpdateEngineClient::Status& status) OVERRIDE;
 
   // ash::UserActivityObserver:
   virtual void OnUserActivity() OVERRIDE;
 
@@ skipping 50 matching lines @@
 
   // Whether a reboot has been requested.
   bool reboot_requested_;
 
   // Timers that start and end the grace period.
   scoped_ptr<base::OneShotTimer<AutomaticRebootManager> > grace_start_timer_;
   scoped_ptr<base::OneShotTimer<AutomaticRebootManager> > grace_end_timer_;
 
   base::WeakPtrFactory<AutomaticRebootManager> weak_ptr_factory_;
 
+  ObserverList<AutomaticRebootManagerObserver, true> observers_;
+
   DISALLOW_COPY_AND_ASSIGN(AutomaticRebootManager);
 };
 
 }  // namespace system
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_SYSTEM_AUTOMATIC_REBOOT_MANAGER_H_