Service Worker event dispatcher for Background Fetch

third_party/WebKit/Source/modules/background_fetch/BackgroundFetchedEvent.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/BackgroundFetchedEvent.h"
 
 #include "bindings/core/v8/ScriptState.h"
 #include "core/dom/DOMException.h"
 #include "modules/EventModulesNames.h"
 #include "modules/background_fetch/BackgroundFetchSettledRequest.h"
 #include "modules/background_fetch/BackgroundFetchedEventInit.h"
 
 namespace blink {
 
 BackgroundFetchedEvent::BackgroundFetchedEvent(
     const AtomicString& type,
     const BackgroundFetchedEventInit& init)
-    : BackgroundFetchEvent(type, init),
+    : BackgroundFetchEvent(type, init, nullptr /* observer */),
       m_completedFetches(init.completedFetches()) {}
 
 BackgroundFetchedEvent::~BackgroundFetchedEvent() = default;
 
 HeapVector<Member<BackgroundFetchSettledRequest>>
 BackgroundFetchedEvent::completedFetches() const {
   return m_completedFetches;
 }
 
 ScriptPromise BackgroundFetchedEvent::updateUI(ScriptState* scriptState,
                                                String title) {
   return ScriptPromise::rejectWithDOMException(
       scriptState,
       DOMException::create(NotSupportedError, "Not implemented yet."));
 }
 
 const AtomicString& BackgroundFetchedEvent::interfaceName() const {
   return EventNames::BackgroundFetchedEvent;
 }
 
 DEFINE_TRACE(BackgroundFetchedEvent) {
   visitor->trace(m_completedFetches);
   BackgroundFetchEvent::trace(visitor);
 }
 
 }  // namespace blink