Clean up forward declarations in Source/web

Source/web/WorkerPermissionClient.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 19 matching lines @@
 
 #ifndef WorkerPermissionClient_h
 #define WorkerPermissionClient_h
 
 #include "core/workers/WorkerClients.h"
 #include "wtf/Forward.h"
 
 namespace blink {
 
 class ExecutionContext;
-class WebFrame;
-class WebPermissionCallbacks;
 class WebString;
 class WebWorkerPermissionClientProxy;
 
 class WorkerPermissionClient final : public NoBaseWillBeGarbageCollectedFinalized<WorkerPermissionClient>, public WillBeHeapSupplement<WorkerClients> {
     WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(WorkerPermissionClient);
 public:
     static PassOwnPtrWillBeRawPtr<WorkerPermissionClient> create(PassOwnPtr<WebWorkerPermissionClientProxy>);
     virtual ~WorkerPermissionClient();
 
     bool requestFileSystemAccessSync();
     bool allowIndexedDB(const WebString& name);
 
     static const char* supplementName();
     static WorkerPermissionClient* from(ExecutionContext&);
 
     virtual void trace(Visitor* visitor) override { WillBeHeapSupplement<WorkerClients>::trace(visitor); }
 
 private:
     explicit WorkerPermissionClient(PassOwnPtr<WebWorkerPermissionClientProxy>);
 
     OwnPtr<WebWorkerPermissionClientProxy> m_proxy;
 };
 
 void providePermissionClientToWorker(WorkerClients*, PassOwnPtr<WebWorkerPermissionClientProxy>);
 
 } // namespace blink
 
 #endif // WorkerPermissionClient_h