relnote: Close the QUIC connection when a packet is about to be sent out

net/quic/quic_sent_packet_manager.h

Index: net/quic/quic_sent_packet_manager.h
diff --git a/net/quic/quic_sent_packet_manager.h b/net/quic/quic_sent_packet_manager.h
index 0b915cb0e2611dacab5624f2c5393e2542e2279b..d9f46960983dc685dc7cde33e199603095203432 100644
--- a/net/quic/quic_sent_packet_manager.h
+++ b/net/quic/quic_sent_packet_manager.h
@@ -228,7 +228,11 @@ class NET_EXPORT_PRIVATE QuicSentPacketManager {
     return unacked_packets_.largest_observed();
   }
 
-  QuicPacketNumber least_packet_awaited_by_peer() {
+  QuicPacketNumber largest_sent_packet() const {
+    return unacked_packets_.largest_sent_packet();
+  }
+
+  QuicPacketNumber least_packet_awaited_by_peer() const {
     return least_packet_awaited_by_peer_;
   }