Update modules classes to use OVERRIDE / FINAL when needed

Source/modules/webmidi/MIDIConnectionEvent.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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 27 matching lines @@
 
 struct MIDIConnectionEventInit : public EventInit {
     MIDIConnectionEventInit()
         : port(0)
     {
     };
 
     RefPtr<MIDIPort> port;
 };
 
-class MIDIConnectionEvent : public Event {
+class MIDIConnectionEvent FINAL : public Event {
 public:
     static PassRefPtr<MIDIConnectionEvent> create()
     {
         return adoptRef(new MIDIConnectionEvent());
     }
 
     static PassRefPtr<MIDIConnectionEvent> create(const AtomicString& type, PassRefPtr<MIDIPort> port)
     {
         return adoptRef(new MIDIConnectionEvent(type, port));
     }
@@ skipping 26 matching lines @@
     {
         ScriptWrappable::init(this);
     }
 
     RefPtr<MIDIPort> m_port;
 };
 
 } // namespace WebCore
 
 #endif // MIDIConnectionEvent_h