*aURI = nsXPIDLCString::Copy(mOriginalURLSpec);
*aURI = nsCRT::strdup(mOriginalURLSpec);
RDFXMLDataSourceImpl::GetURI(char* *aURI){    *aURI = nsnull;    if (mOriginalURLSpec) {        // We don't use the mURL, because it might get re-written when        // it's actually opened.        *aURI = nsXPIDLCString::Copy(mOriginalURLSpec);        if (! *aURI)            return NS_ERROR_OUT_OF_MEMORY;    }    return NS_OK;}