Clean up forward declarations in Source/web

Source/web/WebSharedWorkerImpl.h

 /*
  * Copyright (C) 2009 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 31 matching lines @@
 #include "public/web/WebDevToolsAgentClient.h"
 #include "public/web/WebFrameClient.h"
 #include "public/web/WebSharedWorkerClient.h"
 #include "wtf/PassOwnPtr.h"
 #include "wtf/RefPtr.h"
 #include "wtf/WeakPtr.h"
 
 namespace blink {
 
 class ConsoleMessage;
-class ResourceResponse;
 class WebApplicationCacheHost;
 class WebApplicationCacheHostClient;
-class WebWorkerClient;
-class WebSecurityOrigin;
 class WebString;
 class WebURL;
 class WebView;
-class WebWorker;
 class WebSharedWorkerClient;
 class WorkerInspectorProxy;
 
 // This class is used by the worker process code to talk to the SharedWorker implementation.
 // It can't use it directly since it uses WebKit types, so this class converts the data types.
 // When the SharedWorker object wants to call WorkerReportingProxy, this class will
 // convert to Chrome data types first and then call the supplied WebCommonWorkerClient.
 class WebSharedWorkerImpl final
     : public WorkerReportingProxy
     , public WorkerLoaderProxy
@@ skipping 92 matching lines @@
     OwnPtr<Loader> m_mainScriptLoader;
     WebURL m_url;
     WebString m_name;
     WebString m_contentSecurityPolicy;
     WebContentSecurityPolicyType m_policyType;
 };
 
 } // namespace blink
 
 #endif