Include wtf/RefCounted.h less often in modules/

Source/modules/webdatabase/WorkerGlobalScopeWebDatabase.h

 /*
  * Copyright (C) 2008, 2009 Apple 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 11 matching lines @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
  */
 
 #ifndef WorkerGlobalScopeWebDatabase_h
 #define WorkerGlobalScopeWebDatabase_h
 
 #include "platform/heap/Handle.h"
 #include "wtf/Forward.h"
-#include "wtf/PassRefPtr.h"
-#include "wtf/RefCounted.h"
-#include "wtf/RefPtr.h"
 
 namespace WebCore {
 
 class Database;
 class DatabaseCallback;
 class DatabaseSync;
 class ExceptionState;
 class WorkerGlobalScope;
 
 class WorkerGlobalScopeWebDatabase {
 public:
     static PassRefPtrWillBeRawPtr<Database> openDatabase(WorkerGlobalScope&, const String& name, const String& version, const String& displayName, unsigned long estimatedSize, PassOwnPtr<DatabaseCallback> creationCallback, ExceptionState&);
     static PassRefPtrWillBeRawPtr<DatabaseSync> openDatabaseSync(WorkerGlobalScope&, const String& name, const String& version, const String& displayName, unsigned long estimatedSize, PassOwnPtr<DatabaseCallback> creationCallback, ExceptionState&);
 
 private:
     WorkerGlobalScopeWebDatabase() { };
     ~WorkerGlobalScopeWebDatabase() { };
 };
 
 } // namespace WebCore
 
 #endif // WorkerGlobalScopeWebDatabase_h