Use FINAL macro for classes whose virtual destructor was removed

Source/platform/exported/WebRTCICECandidate.cpp

 /*
  * 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:
  *
  *     * 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 19 matching lines @@
 
 #include "config.h"
 #include "public/platform/WebRTCICECandidate.h"
 
 #include "public/platform/WebString.h"
 #include "wtf/PassRefPtr.h"
 #include "wtf/RefCounted.h"
 
 namespace WebKit {
 
-class WebRTCICECandidatePrivate : public RefCounted<WebRTCICECandidatePrivate> {
+class WebRTCICECandidatePrivate FINAL : public RefCounted<WebRTCICECandidatePrivate> {
 public:
     static PassRefPtr<WebRTCICECandidatePrivate> create(const WebString& candidate, const WebString& sdpMid, unsigned short sdpMLineIndex)
     {
         return adoptRef(new WebRTCICECandidatePrivate(candidate, sdpMid, sdpMLineIndex));
     }
 
     const WebString& candidate() const { return m_candidate; }
     const WebString& sdpMid() const { return m_sdpMid; }
     unsigned short sdpMLineIndex() const { return m_sdpMLineIndex; }
 
@@ skipping 39 matching lines @@
     return m_private->sdpMid();
 }
 
 unsigned short WebRTCICECandidate::sdpMLineIndex() const
 {
     ASSERT(!m_private.isNull());
     return m_private->sdpMLineIndex();
 }
 
 } // namespace WebKit