Update modules classes to use OVERRIDE / FINAL when needed

Source/modules/webmidi/NavigatorWebMIDI.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 22 matching lines @@
 
 #include "core/frame/DOMWindowProperty.h"
 #include "modules/webmidi/MIDIOptions.h"
 #include "platform/Supplementable.h"
 
 namespace WebCore {
 
 class MIDIAccessPromise;
 class Navigator;
 
-class NavigatorWebMIDI : public Supplement<Navigator>, public DOMWindowProperty {
+class NavigatorWebMIDI FINAL : public Supplement<Navigator>, public DOMWindowProperty {
 public:
     virtual ~NavigatorWebMIDI();
     static NavigatorWebMIDI* from(Navigator*);
 
     static PassRefPtr<MIDIAccessPromise> requestMIDIAccess(Navigator*, const Dictionary&);
     PassRefPtr<MIDIAccessPromise> requestMIDIAccess(const Dictionary&);
 
 private:
     NavigatorWebMIDI(Frame*);
     static const char* supplementName();
 };
 
 } // namespace WebCore
 
 #endif // NavigatorWebMIDI_h