#include "nsISupports.h"

 #include "nsIInterfaceWrapper.h"

 #include "nsAutoPtr.h"

 class nsReadonlyWrapper : public nsIInterfaceWrapper

 {

 public:

   NS_DECL_ISUPPORTS

   NS_DECL_NSIINTERFACEWRAPPER

   nsReadonlyWrapper();

   static nsReadonlyWrapper* GetSingleton();

   ~nsReadonlyWrapper();

   static nsRefPtr<nsReadonlyWrapper> mService;

 private:

   nsresult GetWrapper(const nsIID & iid,

                       nsISupports *wrappee,

                       nsISupports **wrapper);

   void Shutdown();

 };

 // 209f5cad-b02b-49e3-8df5-4efc7702c7ae

 #define NSREADONLYWRAPPER_CID \

 { 0x209f5cad, 0xb02b, 0x49e3, \

   { 0x8d, 0xf5, 0x4e, 0xfc, 0x77, 0x02, 0xc7, 0xae } }

 #define NSREADONLYWRAPPER_CONTRACTID "@mozilla.org/readonly-wrapper;1"