nsresult rv = NS_NewLoadGroup(getter_AddRefs(mLoadGroup), this); if (NS_FAILED(rv)) return rv;
m_Url        = nsnull; m_NextStream = nsnull; m_Command    = (nsnull != aCommand) ? PL_strdup(aCommand) : nsnull; m_ExtraInfo  = aExtraInfo;
nsDocLoaderImpl::Init(){  if (!mRequestInfoHash.ops) {    return NS_ERROR_OUT_OF_MEMORY;  }  nsresult rv = NS_NewLoadGroup(getter_AddRefs(mLoadGroup), this);  if (NS_FAILED(rv)) return rv;  PR_LOG(gDocLoaderLog, PR_LOG_DEBUG,          ("DocLoader:%p: load group %x.\n", this, mLoadGroup.get()));  return NS_OK;}