Use FINAL macro for classes whose virtual destructor was removed

Source/platform/exported/WebSourceInfo.cpp

 /*
  * 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:
  * 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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 15 matching lines @@
 #include "config.h"
 
 #include "public/platform/WebSourceInfo.h"
 
 #include "public/platform/WebString.h"
 #include "wtf/PassRefPtr.h"
 #include "wtf/RefCounted.h"
 
 namespace WebKit {
 
-class WebSourceInfoPrivate : public RefCounted<WebSourceInfoPrivate> {
+class WebSourceInfoPrivate FINAL : public RefCounted<WebSourceInfoPrivate> {
 public:
     static PassRefPtr<WebSourceInfoPrivate> create(const WebString& id, WebSourceInfo::SourceKind, const WebString& label, WebSourceInfo::VideoFacingMode);
 
     const WebString& id() const { return m_id; }
     WebSourceInfo::SourceKind kind() const { return m_kind; }
     const WebString& label() const { return m_label; }
     WebSourceInfo::VideoFacingMode facing() const { return m_facing; }
 
 private:
     WebSourceInfoPrivate(const WebString& id, WebSourceInfo::SourceKind, const WebString& label, WebSourceInfo::VideoFacingMode);
@@ skipping 51 matching lines @@
 }
 
 WebSourceInfo::VideoFacingMode WebSourceInfo::facing() const
 {
     ASSERT(!m_private.isNull());
     return m_private->facing();
 }
 
 } // namespace WebKit