Change QuicAckFrame's revived_packets to be a single QuicPacketNumber. QUIC now ignores all but the…

net/quic/quic_sent_packet_manager.cc

Index: net/quic/quic_sent_packet_manager.cc
diff --git a/net/quic/quic_sent_packet_manager.cc b/net/quic/quic_sent_packet_manager.cc
index 3d4fb9b6c38a24bf4dfcef04bf84cb7b937caa16..586d27a17fa08b7f7ba6a8ee69e647b5a50bd4e5 100644
--- a/net/quic/quic_sent_packet_manager.cc
+++ b/net/quic/quic_sent_packet_manager.cc
@@ -326,10 +326,8 @@ void QuicSentPacketManager::HandleAckForSentPackets(
   }
 
   // Discard any retransmittable frames associated with revived packets.
-  for (PacketNumberSet::const_iterator revived_it =
-           ack_frame.revived_packets.begin();
-       revived_it != ack_frame.revived_packets.end(); ++revived_it) {
-    MarkPacketRevived(*revived_it, delta_largest_observed);
+  if (ack_frame.latest_revived_packet != 0) {
+    MarkPacketRevived(ack_frame.latest_revived_packet, delta_largest_observed);
   }
 }