Service Worker event dispatcher for Background Fetch

third_party/WebKit/Source/modules/background_fetch/BackgroundFetchEvent.cpp

 // Copyright 2017 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 "modules/background_fetch/BackgroundFetchEvent.h"
 
 #include "modules/EventModulesNames.h"
 #include "modules/background_fetch/BackgroundFetchEventInit.h"
 
 namespace blink {
 
 BackgroundFetchEvent::BackgroundFetchEvent(const AtomicString& type,
-                                           const BackgroundFetchEventInit& init)
-    : ExtendableEvent(type, init), m_tag(init.tag()) {}
+                                           const BackgroundFetchEventInit& init,
+                                           WaitUntilObserver* observer)
+    : ExtendableEvent(type, init, observer), m_tag(init.tag()) {}
 
 BackgroundFetchEvent::~BackgroundFetchEvent() = default;
 
 String BackgroundFetchEvent::tag() const {
   return m_tag;
 }
 
 const AtomicString& BackgroundFetchEvent::interfaceName() const {
   return EventNames::BackgroundFetchEvent;
 }
 
 }  // namespace blink