Function nsIURLFetcher::FireURLRequest(nsIURI, nsILocalFile, nsIFileOutputStream, nsresult ()(nsresult, const nsACString_internal&, const nsACString_internal&, PRInt32, const PRUnichar, void), void*)

Type: nsresult()(nsIURI*,nsILocalFile*,nsIFileOutputStream*,nsAttachSaveCompletionCallback,void*)