Cleanup namespace usage in public/web/Web[N-Z]*.h.

public/web/WebSharedWorker.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 17 matching lines @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef WebSharedWorker_h
 #define WebSharedWorker_h
 
 #include "../platform/WebCommon.h"
 #include "WebContentSecurityPolicy.h"
 
 namespace blink {
-class ScriptExecutionContext;
-}
-
-namespace blink {
 
 class WebString;
 class WebMessagePortChannel;
 class WebSharedWorkerClient;
 class WebURL;
 
 // This is the interface to a SharedWorker thread.
 class WebSharedWorker {
 public:
     // Invoked from the worker thread to instantiate a WebSharedWorker that interacts with the WebKit worker components.
@@ skipping 18 matching lines @@
     virtual void resumeWorkerContext() = 0;
     virtual void attachDevTools() = 0;
     virtual void reattachDevTools(const WebString& savedState) = 0;
     virtual void detachDevTools() = 0;
     virtual void dispatchDevToolsMessage(const WebString&) = 0;
 };
 
 } // namespace blink
 
 #endif