Update Event classes to use OVERRIDE / FINAL when needed

Source/core/events/KeyboardEvent.h

 /*
  * Copyright (C) 2001 Peter Kelly (pmk@post.com)
  * Copyright (C) 2001 Tobias Anton (anton@stud.fbi.fh-darmstadt.de)
  * Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
  *
  * 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.
@@ skipping 27 matching lines @@
 
     String keyIdentifier;
     unsigned location;
     bool ctrlKey;
     bool altKey;
     bool shiftKey;
     bool metaKey;
     bool repeat;
 };
 
-class KeyboardEvent : public UIEventWithKeyState {
+class KeyboardEvent FINAL : public UIEventWithKeyState {
 public:
     enum KeyLocationCode {
         DOM_KEY_LOCATION_STANDARD   = 0x00,
         DOM_KEY_LOCATION_LEFT       = 0x01,
         DOM_KEY_LOCATION_RIGHT      = 0x02,
         DOM_KEY_LOCATION_NUMPAD     = 0x03
     };
 
     static PassRefPtr<KeyboardEvent> create()
     {
@@ skipping 26 matching lines @@
 
     const String& keyIdentifier() const { return m_keyIdentifier; }
     unsigned location() const { return m_location; }
 
     bool getModifierState(const String& keyIdentifier) const;
 
     bool altGraphKey() const { return m_altGraphKey; }
 
     const PlatformKeyboardEvent* keyEvent() const { return m_keyEvent.get(); }
 
-    int keyCode() const; // key code for keydown and keyup, character for keypress
-    int charCode() const; // character code for keypress, 0 for keydown and keyup
+    virtual int keyCode() const OVERRIDE; // key code for keydown and keyup, character for keypress
+    virtual int charCode() const OVERRIDE; // character code for keypress, 0 for keydown and keyup
     bool repeat() const { return m_isAutoRepeat; }
 
-    virtual const AtomicString& interfaceName() const;
-    virtual bool isKeyboardEvent() const;
-    virtual int which() const;
+    virtual const AtomicString& interfaceName() const OVERRIDE;
+    virtual bool isKeyboardEvent() const OVERRIDE;
+    virtual int which() const OVERRIDE;
 
 private:
     KeyboardEvent();
     KeyboardEvent(const PlatformKeyboardEvent&, AbstractView*);
     KeyboardEvent(const AtomicString&, const KeyboardEventInit&);
     KeyboardEvent(const AtomicString& type, bool canBubble, bool cancelable, AbstractView*,
         const String& keyIdentifier, unsigned location,
         bool ctrlKey, bool altKey, bool shiftKey, bool metaKey, bool altGraphKey);
 
     OwnPtr<PlatformKeyboardEvent> m_keyEvent;
@@ skipping 11 matching lines @@
 private:
     explicit KeyboardEventDispatchMediator(PassRefPtr<KeyboardEvent>);
     virtual bool dispatchEvent(EventDispatcher*) const OVERRIDE;
 };
 
 DEFINE_EVENT_TYPE_CASTS(KeyboardEvent);
 
 } // namespace WebCore
 
 #endif // KeyboardEvent_h