Update modules classes to use OVERRIDE / FINAL when needed

Source/modules/performance/SharedWorkerPerformance.h

 /*
  * Copyright (c) 2014, Opera Software ASA. 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 19 matching lines @@
 #ifndef SharedWorkerPerformance_h
 #define SharedWorkerPerformance_h
 
 #include "platform/Supplementable.h"
 
 namespace WebCore {
 
 class ExecutionContext;
 class SharedWorker;
 
-class SharedWorkerPerformance : public Supplement<SharedWorker> {
+class SharedWorkerPerformance FINAL : public Supplement<SharedWorker> {
 public:
     virtual ~SharedWorkerPerformance();
     static SharedWorkerPerformance* from(SharedWorker*);
 
     static double workerStart(ExecutionContext*, SharedWorker*);
     double getWorkerStart(ExecutionContext*, SharedWorker*) const;
 
 private:
     explicit SharedWorkerPerformance();
     static const char* supplementName();
 
     double m_timeOrigin;
 };
 
 } // namespace WebCore
 
 #endif // SharedWorkerPerformance_h