kNack              16 net/quic/congestion_control/loss_detection_interface.cc     case kNack:
kNack              27 net/quic/congestion_control/tcp_loss_algorithm.cc   return kNack;
kNack             206 net/quic/quic_connection.cc           FLAGS_quic_use_time_loss_detection ? kTime : kNack),
kNack              25 net/quic/quic_sent_packet_manager_test.cc       : manager_(true, &clock_, &stats_, kFixRate, kNack),