do_GetService( const char* aProgID, nsISupports* aServiceManager, nsresult* error = 0 )
do_GetService( const nsCID& aCID, nsISupports* aServiceManager, nsresult* error = 0 )
do_GetService( const char* aProgID, nsISupports* aServiceManager, nsresult* error = 0 )  {    return nsGetServiceByProgID(aProgID, aServiceManager, error);  }