ServiceWorker: Keep the worker alive until FetchEvent.waitUntil settles

third_party/WebKit/Source/modules/serviceworkers/ForeignFetchEvent.h

 // Copyright 2016 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 ForeignFetchEvent_h
 #define ForeignFetchEvent_h
 
 #include "bindings/core/v8/ScriptPromise.h"
 #include "modules/EventModules.h"
 #include "modules/ModulesExport.h"
 #include "modules/fetch/Request.h"
 #include "modules/serviceworkers/ExtendableEvent.h"
 #include "modules/serviceworkers/ForeignFetchEventInit.h"
 #include "modules/serviceworkers/ForeignFetchRespondWithObserver.h"
+#include "modules/serviceworkers/WaitUntilObserver.h"
 #include "platform/heap/Handle.h"
 
 namespace blink {
 
 class ExceptionState;
 class Request;
 
 // A foreignfetch event is dispatched by the client to a service worker's script
 // context. ForeignFetchRespondWithObserver can be used to notify the client
 // about the service worker's response.
 class MODULES_EXPORT ForeignFetchEvent final : public ExtendableEvent {
     DEFINE_WRAPPERTYPEINFO();
 public:
     static ForeignFetchEvent* create();
     static ForeignFetchEvent* create(ScriptState*, const AtomicString& type, const ForeignFetchEventInit&);
-    static ForeignFetchEvent* create(ScriptState*, const AtomicString& type, const ForeignFetchEventInit&, ForeignFetchRespondWithObserver*);
+    static ForeignFetchEvent* create(ScriptState*, const AtomicString& type, const ForeignFetchEventInit&, ForeignFetchRespondWithObserver*, WaitUntilObserver*);
 
     Request* request() const;
     String origin() const;
 
     void respondWith(ScriptState*, ScriptPromise, ExceptionState&);
 
     const AtomicString& interfaceName() const override;
 
     DECLARE_VIRTUAL_TRACE();
 
 protected:
     ForeignFetchEvent();
-    ForeignFetchEvent(ScriptState*, const AtomicString& type, const ForeignFetchEventInit&, ForeignFetchRespondWithObserver*);
+    ForeignFetchEvent(ScriptState*, const AtomicString& type, const ForeignFetchEventInit&, ForeignFetchRespondWithObserver*, WaitUntilObserver*);
 
 private:
     Member<ForeignFetchRespondWithObserver> m_observer;
     Member<Request> m_request;
     String m_origin;
 };
 
 } // namespace blink
 
 #endif // ForeignFetchEvent_h