Clean up forward declarations in Source/web

Source/web/WebEmbeddedWorkerImpl.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 25 matching lines @@
 #include "public/web/WebEmbeddedWorker.h"
 #include "public/web/WebEmbeddedWorkerStartData.h"
 #include "public/web/WebFrameClient.h"
 
 namespace blink {
 
 class ServiceWorkerGlobalScopeProxy;
 class WebServiceWorkerNetworkProvider;
 class WebView;
 class WorkerInspectorProxy;
-class WorkerScriptLoader;
 class WorkerThread;
 
 class WebEmbeddedWorkerImpl final
     : public WebEmbeddedWorker
     , public WebFrameClient
     , public WebDevToolsAgentClient {
     WTF_MAKE_NONCOPYABLE(WebEmbeddedWorkerImpl);
 public:
     WebEmbeddedWorkerImpl(
         PassOwnPtr<WebServiceWorkerContextClient>,
@@ skipping 78 matching lines @@
         DoPauseAfterDownload,
         IsPausedAfterDownload
     } m_pauseAfterDownloadState;
 
     WaitingForDebuggerState m_waitingForDebuggerState;
 };
 
 } // namespace blink
 
 #endif // WebEmbeddedWorkerImpl_h