Implement notificationclose event

third_party/WebKit/Source/modules/notifications/Notification.cpp

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 87 matching lines @@
     if (exceptionState.hadException())
         return nullptr;
 
     Notification* notification = new Notification(context, data);
     notification->scheduleShow();
     notification->suspendIfNeeded();
 
     return notification;
 }
 
-Notification* Notification::create(ExecutionContext* context, int64_t persistentId, const WebNotificationData& data)
+Notification* Notification::create(ExecutionContext* context, int64_t persistentId, const WebNotificationData& data, bool showing)
 {
     Notification* notification = new Notification(context, data);
     notification->setPersistentId(persistentId);
-    notification->setState(NotificationStateShowing);
+    notification->setState(showing ? NotificationStateShowing : NotificationStateClosed);
     notification->suspendIfNeeded();
 
     return notification;
 }
 
 Notification::Notification(ExecutionContext* context, const WebNotificationData& data)
     : ActiveDOMObject(context)
     , m_data(data)
     , m_persistentId(kInvalidPersistentId)
     , m_state(NotificationStateIdle)
@@ skipping 249 matching lines @@
 }
 
 DEFINE_TRACE(Notification)
 {
     visitor->trace(m_asyncRunner);
     RefCountedGarbageCollectedEventTargetWithInlineData<Notification>::trace(visitor);
     ActiveDOMObject::trace(visitor);
 }
 
 } // namespace blink