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

Source/core/frame/Navigator.h

 /*
     Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
 
     This library is free software; you can redistribute it and/or
     modify it under the terms of the GNU Library General Public
     License as published by the Free Software Foundation; either
     version 2 of the License, or (at your option) any later version.
 
     This library is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 20 matching lines @@
 
 namespace WebCore {
 
 class DOMMimeTypeArray;
 class DOMPluginArray;
 class Frame;
 class PluginData;
 
 typedef int ExceptionCode;
 
-class Navigator : public NavigatorBase, public ScriptWrappable, public RefCounted<Navigator>, public DOMWindowProperty, public Supplementable<Navigator> {
+class Navigator FINAL : public NavigatorBase, public ScriptWrappable, public RefCounted<Navigator>, public DOMWindowProperty, public Supplementable<Navigator> {
 public:
     static PassRefPtr<Navigator> create(Frame* frame) { return adoptRef(new Navigator(frame)); }
     virtual ~Navigator();
 
     AtomicString language() const;
     DOMPluginArray* plugins() const;
     DOMMimeTypeArray* mimeTypes() const;
     bool cookieEnabled() const;
     bool javaEnabled() const;
 
     String productSub() const;
     String vendor() const;
     String vendorSub() const;
 
     virtual String userAgent() const OVERRIDE;
 
     // Relinquishes the storage lock, if one exists.
     void getStorageUpdates();
 
 private:
     explicit Navigator(Frame*);
 
     mutable RefPtr<DOMPluginArray> m_plugins;
     mutable RefPtr<DOMMimeTypeArray> m_mimeTypes;
 };
 
 }
 
 #endif