The Service Worker notificationclick event should carry a notification.

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 54 matching lines @@
         KURL iconUrl = options.icon().isEmpty() ? KURL() : context->completeURL(options.icon());
         if (!iconUrl.isEmpty() && iconUrl.isValid())
             notification->setIconUrl(iconUrl);
     }
 
     String insecureOriginMessage;
     UseCounter::Feature feature = context->securityOrigin()->canAccessFeatureRequiringSecureOrigin(insecureOriginMessage)
         ? UseCounter::NotificationSecureOrigin : UseCounter::NotificationInsecureOrigin;
     UseCounter::count(context, feature);
 
+    notification->scheduleShow();
     notification->suspendIfNeeded();
     return notification;
 }
+
+Notification* Notification::create(ExecutionContext* context, const String& persistentId, const WebNotificationData& data)
+{
+    Notification* notification = new Notification(data.title, context);
+
+    notification->setPersistentId(persistentId);
+    notification->setDir(data.direction == WebNotificationData::DirectionLeftToRight ? "ltr" : "rtl");
+    notification->setLang(data.lang);
+    notification->setBody(data.body);
+    notification->setTag(data.tag);
+
+    if (!data.icon.isEmpty())
+        notification->setIconUrl(data.icon);
+
+    notification->setState(NotificationStateShowing);
+    notification->suspendIfNeeded();
+    return notification;
+}
 
 Notification::Notification(const String& title, ExecutionContext* context)
     : ActiveDOMObject(context)
     , m_title(title)
     , m_dir("auto")
     , m_state(NotificationStateIdle)
     , m_asyncRunner(this, &Notification::show)
 {
     ASSERT(notificationManager());
-
-    m_asyncRunner.runAsync();
 }
 
 Notification::~Notification()
 {
 }
 
+void Notification::scheduleShow()
+{
+    ASSERT(m_state == NotificationStateIdle);
+    ASSERT(!m_asyncRunner.isActive());
+
+    m_asyncRunner.runAsync();
+}
+
 void Notification::show()
 {
     ASSERT(m_state == NotificationStateIdle);
     if (Notification::checkPermission(executionContext()) != WebNotificationPermissionAllowed) {
         dispatchErrorEvent();
         return;
     }
 
     SecurityOrigin* origin = executionContext()->securityOrigin();
     ASSERT(origin);
 
     // FIXME: Associate the appropriate text direction with the notification.
     // FIXME: Do CSP checks on the associated notification icon.
     WebNotificationData notificationData(m_title, WebNotificationData::DirectionLeftToRight, m_lang, m_body, m_tag, m_iconUrl);
     notificationManager()->show(WebSerializedOrigin(*origin), notificationData, this);
 
     m_state = NotificationStateShowing;
 }
 
 void Notification::close()
 {
     if (m_state != NotificationStateShowing)
         return;
 
     m_state = NotificationStateClosed;
-    notificationManager()->close(this);
+    if (!m_persistentId.isEmpty())
+        notificationManager()->closePersistent(m_persistentId);
+    else
+        notificationManager()->close(this);
 }
 
 void Notification::dispatchShowEvent()
 {
     dispatchEvent(Event::create(EventTypeNames::show));
 }
 
 void Notification::dispatchClickEvent()
 {
     UserGestureIndicator gestureIndicator(DefinitelyProcessingNewUserGesture);
@@ skipping 77 matching lines @@
 
     m_asyncRunner.stop();
 }
 
 bool Notification::hasPendingActivity() const
 {
     return m_state == NotificationStateShowing || m_asyncRunner.isActive();
 }
 
 } // namespace blink