Update modules classes to use OVERRIDE / FINAL when needed

Source/modules/webmidi/MIDIController.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 21 matching lines @@
 #define MIDIController_h
 
 #include "core/page/Page.h"
 #include "wtf/RefPtr.h"
 
 namespace WebCore {
 
 class MIDIAccess;
 class MIDIClient;
 
-class MIDIController : public Supplement<Page> {
+class MIDIController FINAL : public Supplement<Page> {
 public:
-    ~MIDIController();
+    virtual ~MIDIController();
 
     void requestSysExPermission(PassRefPtr<MIDIAccess>);
     void cancelSysExPermissionRequest(MIDIAccess*);
 
     static PassOwnPtr<MIDIController> create(MIDIClient*);
     static const char* supplementName();
     static MIDIController* from(Page* page) { return static_cast<MIDIController*>(Supplement<Page>::from(page, supplementName())); }
 
 protected:
     explicit MIDIController(MIDIClient*);
 
 private:
     MIDIClient* m_client;
 };
 
 } // namespace WebCore
 
 #endif // MIDIController_h