Update fetch / loader classes to use OVERRIDE / FINAL when needed

Source/core/fetch/XSLStyleSheetResource.h

 /*
     Copyright (C) 1998 Lars Knoll (knoll@mpi-hd.mpg.de)
     Copyright (C) 2001 Dirk Mueller <mueller@kde.org>
     Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
     Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
 
     This library is free software; you can redistribute it and/or
     modify it under the terms of the GNU Library General Public
     License as published by the Free Software Foundation; either
     version 2 of the License, or (at your option) any later version.
@@ skipping 16 matching lines @@
 #define XSLStyleSheetResource_h
 
 #include "core/fetch/ResourcePtr.h"
 #include "core/fetch/StyleSheetResource.h"
 
 namespace WebCore {
 
 class ResourceFetcher;
 class TextResourceDecoder;
 
-class XSLStyleSheetResource : public StyleSheetResource {
+class XSLStyleSheetResource FINAL : public StyleSheetResource {
 public:
     XSLStyleSheetResource(const ResourceRequest&);
 
     const String& sheet() const { return m_sheet; }
 
-    virtual void didAddClient(ResourceClient*);
-    virtual void setEncoding(const String&);
-    virtual String encoding() const;
+    virtual void didAddClient(ResourceClient*) OVERRIDE;
+    virtual void setEncoding(const String&) OVERRIDE;
+    virtual String encoding() const OVERRIDE;
 
 protected:
-    virtual void checkNotify();
+    virtual void checkNotify() OVERRIDE;
 
     String m_sheet;
     OwnPtr<TextResourceDecoder> m_decoder;
 };
 
 DEFINE_RESOURCE_TYPE_CASTS(XSLStyleSheet);
 
 } // namespace WebCore
 
 #endif