Update web classes to use OVERRIDE / FINAL when needed

Source/web/StorageNamespaceProxy.h

 /*
  * Copyright (C) 2009 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 17 matching lines @@
 
 #include "core/storage/StorageArea.h"
 #include "core/storage/StorageNamespace.h"
 
 namespace blink { class WebStorageNamespace; }
 
 namespace WebCore {
 
 // Instances of StorageNamespaceProxy are only used to interact with
 // SessionStorage, never LocalStorage.
-class StorageNamespaceProxy : public StorageNamespace {
+class StorageNamespaceProxy FINAL : public StorageNamespace {
 public:
     explicit StorageNamespaceProxy(PassOwnPtr<blink::WebStorageNamespace>);
     virtual ~StorageNamespaceProxy();
-    virtual PassOwnPtr<StorageArea> storageArea(SecurityOrigin*);
+    virtual PassOwnPtr<StorageArea> storageArea(SecurityOrigin*) OVERRIDE;
 
     bool isSameNamespace(const blink::WebStorageNamespace&);
 
 private:
     OwnPtr<blink::WebStorageNamespace> m_storageNamespace;
 };
 
 } // namespace WebCore
 
 #endif // StorageNamespaceProxy_h