if (mRDFContainerUtils) { nsServiceManager::ReleaseService(kRDFContainerUtilsCID, mRDFContainerUtils); mRDFContainerUtils = nsnull; }
--gRefCnt; if (gRefCnt == 0) {
nsChromeRegistry::~nsChromeRegistry(){  if (mDataSourceTable) {        mDataSourceTable->Enumerate(DatasourceEnumerator, mChromeDataSource);      delete mDataSourceTable;  }     if (mRDFService) {    nsServiceManager::ReleaseService(kRDFServiceCID, mRDFService);    mRDFService = nsnull;  }  if (mRDFContainerUtils) {    nsServiceManager::ReleaseService(kRDFContainerUtilsCID, mRDFContainerUtils);    mRDFContainerUtils = nsnull;  }}