Update page & frame classes to use OVERRIDE / FINAL when needed

Source/core/frame/DOMTimer.h

 /*
  * Copyright (C) 2008 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 20 matching lines @@
 #include "core/frame/SuspendableTimer.h"
 #include "platform/UserGestureIndicator.h"
 #include "wtf/Compiler.h"
 #include "wtf/OwnPtr.h"
 #include "wtf/PassOwnPtr.h"
 
 namespace WebCore {
 
 class ExecutionContext;
 
-class DOMTimer : public SuspendableTimer {
+class DOMTimer FINAL : public SuspendableTimer {
 public:
     // Creates a new timer owned by the ExecutionContext, starts it and returns its ID.
     static int install(ExecutionContext*, PassOwnPtr<ScheduledAction>, int timeout, bool singleShot);
     static void removeByID(ExecutionContext*, int timeoutID);
 
     virtual ~DOMTimer();
 
     int timeoutID() const;
 
     // ActiveDOMObject
     virtual void contextDestroyed() OVERRIDE;
     virtual void stop() OVERRIDE;
 
     // The following are essentially constants. All intervals are in seconds.
     static double hiddenPageAlignmentInterval();
     static double visiblePageAlignmentInterval();
 
 private:
     friend class ExecutionContext; // For create().
 
     // Should only be used by ExecutionContext.
     static PassOwnPtr<DOMTimer> create(ExecutionContext* context, PassOwnPtr<ScheduledAction> action, int timeout, bool singleShot, int timeoutID)
     {
         return adoptPtr(new DOMTimer(context, action, timeout, singleShot, timeoutID));
     }
 
     DOMTimer(ExecutionContext*, PassOwnPtr<ScheduledAction>, int interval, bool singleShot, int timeoutID);
-    virtual void fired();
+    virtual void fired() OVERRIDE;
 
     // Retuns timer fire time rounded to the next multiple of timer alignment interval.
-    virtual double alignedFireTime(double) const;
+    virtual double alignedFireTime(double) const OVERRIDE;
 
     int m_timeoutID;
     int m_nestingLevel;
     OwnPtr<ScheduledAction> m_action;
     RefPtr<UserGestureToken> m_userGestureToken;
 };
 
 } // namespace WebCore
 
 #endif // DOMTimer_h