Update modules classes to use OVERRIDE / FINAL when needed

Source/modules/mediastream/MediaConstraintsImpl.h

 /*
  * Copyright (C) 2012 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:
  *
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 23 matching lines @@
 #include "platform/mediastream/MediaConstraints.h"
 #include "wtf/HashMap.h"
 #include "wtf/Vector.h"
 
 namespace WebCore {
 
 class Dictionary;
 
 class ExceptionState;
 
-class MediaConstraintsImpl : public MediaConstraints {
+class MediaConstraintsImpl FINAL : public MediaConstraints {
 public:
     static PassRefPtr<MediaConstraintsImpl> create();
     static PassRefPtr<MediaConstraintsImpl> create(const Dictionary&, ExceptionState&);
     virtual ~MediaConstraintsImpl();
 
     virtual void getMandatoryConstraints(Vector<MediaConstraint>&) const OVERRIDE;
     virtual void getOptionalConstraints(Vector<MediaConstraint>&) const OVERRIDE;
 
     virtual bool getMandatoryConstraintValue(const String& name, String& value) const OVERRIDE;
     virtual bool getOptionalConstraintValue(const String& name, String& value) const OVERRIDE;
 
 private:
     MediaConstraintsImpl() { }
     bool initialize(const Dictionary&);
 
     HashMap<String, String> m_mandatoryConstraints;
     Vector<MediaConstraint> m_optionalConstraints;
 };
 
 } // namespace WebCore
 
 #endif // MediaConstraintsImpl_h