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

Source/core/fetch/XSLStyleSheetResource.h

Index: Source/core/fetch/XSLStyleSheetResource.h
diff --git a/Source/core/fetch/XSLStyleSheetResource.h b/Source/core/fetch/XSLStyleSheetResource.h
index 353b9da6a84908c3731ad347631b438b7d22604c..80712973d1194be7e0ecd7ecf8db448ca0e5500a 100644
--- a/Source/core/fetch/XSLStyleSheetResource.h
+++ b/Source/core/fetch/XSLStyleSheetResource.h
@@ -34,18 +34,18 @@ 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;