blink: Cleanup class/struct forward declarations

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

 /*
  * 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 33 matching lines @@
 #include "public/platform/modules/serviceworker/WebServiceWorkerProvider.h"
 #include "public/platform/modules/serviceworker/WebServiceWorkerProviderClient.h"
 #include "wtf/Forward.h"
 #include <memory>
 
 namespace blink {
 
 class ExecutionContext;
 class WebServiceWorker;
 class WebServiceWorkerProvider;
-class WebServiceWorkerRegistration;
 
 class MODULES_EXPORT ServiceWorkerContainer final
     : public EventTargetWithInlineData,
       public ContextLifecycleObserver,
       public WebServiceWorkerProviderClient {
   DEFINE_WRAPPERTYPEINFO();
   USING_GARBAGE_COLLECTED_MIXIN(ServiceWorkerContainer);
 
  public:
   using RegistrationCallbacks =
@@ skipping 48 matching lines @@
   ReadyProperty* createReadyProperty();
 
   WebServiceWorkerProvider* m_provider;
   Member<ServiceWorker> m_controller;
   Member<ReadyProperty> m_ready;
 };
 
 }  // namespace blink
 
 #endif  // ServiceWorkerContainer_h