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

Source/core/page/PageLifecycleNotifier.h

 /*
  * Copyright (C) 2013 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:
  * 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 18 matching lines @@
 #include "core/page/PageLifecycleObserver.h"
 #include "platform/LifecycleNotifier.h"
 #include "wtf/PassOwnPtr.h"
 #include "wtf/TemporaryChange.h"
 
 namespace WebCore {
 
 class Page;
 class Frame;
 
-class PageLifecycleNotifier : public LifecycleNotifier<Page> {
+class PageLifecycleNotifier FINAL : public LifecycleNotifier<Page> {
 public:
     static PassOwnPtr<PageLifecycleNotifier> create(Page*);
 
     void notifyPageVisibilityChanged();
     void notifyDidCommitLoad(Frame*);
 
     virtual void addObserver(Observer*) OVERRIDE;
     virtual void removeObserver(Observer*) OVERRIDE;
 
 private:
@@ skipping 18 matching lines @@
 inline void PageLifecycleNotifier::notifyDidCommitLoad(Frame* frame)
 {
     TemporaryChange<IterationType> scope(this->m_iterating, IteratingOverPageObservers);
     for (PageObserverSet::iterator it = m_pageObservers.begin(); it != m_pageObservers.end(); ++it)
         (*it)->didCommitLoad(frame);
 }
 
 } // namespace WebCore
 
 #endif // PageLifecycleNotifier_h