Internal QUICHE change

PiperOrigin-RevId: 253074929
Change-Id: I7c0b265ae4ba000bec3b4ea6936a93bc92b73ddc
diff --git a/quic/core/quic_sent_packet_manager.cc b/quic/core/quic_sent_packet_manager.cc
index 204c020..c8ae53b 100644
--- a/quic/core/quic_sent_packet_manager.cc
+++ b/quic/core/quic_sent_packet_manager.cc
@@ -203,7 +203,7 @@
     }
   }
 
-  using_pacing_ = !FLAGS_quic_disable_pacing_for_perf_tests;
+  using_pacing_ = !GetQuicFlag(FLAGS_quic_disable_pacing_for_perf_tests);
 
   if (config.HasClientSentConnectionOption(k1CON, perspective)) {
     send_algorithm_->SetNumEmulatedConnections(1);