332   result->download_url_idx = backoff_url_result.url_idx;  in UpdateCanStart()
681   result->url_idx = -1;  in UpdateBackoffAndDownloadUrl()
724   int url_idx = update_state.last_download_url_idx;  in UpdateBackoffAndDownloadUrl()  local
725   if (url_idx < 0)  in UpdateBackoffAndDownloadUrl()
726     url_idx = -1;  in UpdateBackoffAndDownloadUrl()
749     if (is_first && url_idx >= 0 && used_url_idx != url_idx) {  in UpdateBackoffAndDownloadUrl()
751                    << ") not as expected (" << url_idx << ")";  in UpdateBackoffAndDownloadUrl()
754     url_idx = used_url_idx;  in UpdateBackoffAndDownloadUrl()
755     if (url_idx < 0 || url_idx >= num_urls) {  in UpdateBackoffAndDownloadUrl()
757                  << url_idx << ")";  in UpdateBackoffAndDownloadUrl()
781       if (url_idx < prev_url_idx) {  in UpdateBackoffAndDownloadUrl()
783                    << prev_url_idx << "->" << url_idx  in UpdateBackoffAndDownloadUrl()
788         url_idx = -1;  in UpdateBackoffAndDownloadUrl()
793       if (url_idx > prev_url_idx) {  in UpdateBackoffAndDownloadUrl()
803     prev_url_idx = url_idx;  in UpdateBackoffAndDownloadUrl()
809   if (url_idx < 0 || do_advance_url) {  in UpdateBackoffAndDownloadUrl()
813       if (++url_idx == num_urls) {  in UpdateBackoffAndDownloadUrl()
814         url_idx = 0;  in UpdateBackoffAndDownloadUrl()
821         start_url_idx = url_idx;  in UpdateBackoffAndDownloadUrl()
822       else if (url_idx == start_url_idx)  in UpdateBackoffAndDownloadUrl()
823         url_idx = -1;  // No usable URL.  in UpdateBackoffAndDownloadUrl()
824     } while (url_idx >= 0 &&  in UpdateBackoffAndDownloadUrl()
825              !IsUrlUsable(update_state.download_urls[url_idx], http_allowed));  in UpdateBackoffAndDownloadUrl()
834   if (url_idx >= 0 && is_failure_occurred && may_backoff) {  in UpdateBackoffAndDownloadUrl()
856   result->url_idx = url_idx;  in UpdateBackoffAndDownloadUrl()