blink: Cleanup class/struct forward declarations

third_party/WebKit/public/web/WebSharedWorkerClient.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 25 matching lines @@
 
 namespace blink {
 
 class WebApplicationCacheHost;
 class WebApplicationCacheHostClient;
 class WebDataSource;
 class WebNotificationPresenter;
 class WebSecurityOrigin;
 class WebServiceWorkerNetworkProvider;
 class WebString;
-class WebWorker;
 class WebWorkerContentSettingsClientProxy;
 
 // Provides an interface back to the in-page script object for a worker.
 // All functions are expected to be called back on the thread that created
 // the Worker object, unless noted.
 // An instance of this class must outlive or must have the identical lifetime
 // as WebSharedWorker (i.e. must be kept alive until workerScriptLoadFailed()
 // or workerContextDestroyed() is called).
 class WebSharedWorkerClient {
  public:
@@ skipping 35 matching lines @@
                                    const WebString& state) {}
   virtual WebDevToolsAgentClient::WebKitClientMessageLoop*
   createDevToolsMessageLoop() {
     return nullptr;
   }
 };
 
 }  // namespace blink
 
 #endif