Remove Blink-WebKit-only document.createEvent strings

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

 /*
  * Copyright (C) 2014 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 25 matching lines @@
 #include "modules/ModulesExport.h"
 #include "modules/serviceworkers/ExtendableEventInit.h"
 
 namespace blink {
 
 class WaitUntilObserver;
 
 class MODULES_EXPORT ExtendableEvent : public Event {
     DEFINE_WRAPPERTYPEINFO();
 public:
-    static ExtendableEvent* create();
     static ExtendableEvent* create(const AtomicString& type, const ExtendableEventInit&);
     static ExtendableEvent* create(const AtomicString& type, const ExtendableEventInit&, WaitUntilObserver*);
 
     ~ExtendableEvent() override;
 
     void waitUntil(ScriptState*, ScriptPromise, ExceptionState&);
 
     const AtomicString& interfaceName() const override;
     DECLARE_VIRTUAL_TRACE();
 
 protected:
-    ExtendableEvent();
     ExtendableEvent(const AtomicString& type, const ExtendableEventInit&);
     ExtendableEvent(const AtomicString& type, const ExtendableEventInit&, WaitUntilObserver*);
 
     Member<WaitUntilObserver> m_observer;
 };
 
 } // namespace blink
 
 #endif // ExtendableEvent_h