Land Recent QUIC Changes.

net/quic/quic_flags.cc

Index: net/quic/quic_flags.cc
diff --git a/net/quic/quic_flags.cc b/net/quic/quic_flags.cc
index d7c54b135319d7c90b2c1f620306797bb0f211c1..a244943e3f4f5cd42205dff4d92d32b152df6cbe 100644
--- a/net/quic/quic_flags.cc
+++ b/net/quic/quic_flags.cc
@@ -28,9 +28,6 @@ bool FLAGS_quic_use_bbr_congestion_control = false;
 // connection options.
 bool FLAGS_quic_allow_bbr = false;
 
-// If true, truncate QUIC connection IDs if the client requests it.
-bool FLAGS_allow_truncated_connection_ids_for_quic = true;
-
 // Do not flip this flag.  jokulik plans more testing and additional monitoring
 // before the flag can go the auto-flip process.
 //
@@ -71,3 +68,7 @@ bool FLAGS_quic_use_initial_rtt_for_stats = true;
 
 // If true, uses the last sent packet for the RTO timer instead of the earliest.
 bool FLAGS_quic_rto_uses_last_sent = true;
+
+// If true, attach QuicAckNotifiers to packets rather than individual stream
+// frames.
+bool FLAGS_quic_attach_ack_notifiers_to_packets = true;