Landing Recent QUIC Changes.

net/quic/quic_connection.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 //
 // The entity that handles framing writes for a Quic client or server.
 // Each QuicSession will have a connection associated with it.
 //
 // On the server side, the Dispatcher handles the raw reads, and hands off
 // packets via ProcessUdpPacket for framing and processing.
 //
@@ skipping 705 matching lines @@
   // Contains the connection close packet if the connection has been closed.
   scoped_ptr<QuicEncryptedPacket> connection_close_packet_;
 
   FecGroupMap group_map_;
 
   QuicReceivedPacketManager received_packet_manager_;
   QuicSentEntropyManager sent_entropy_manager_;
 
   // Indicates whether an ack should be sent the next time we try to write.
   bool ack_queued_;
+  // Indicates how many consecutive packets have arrived without sending an ack.
+  uint32 num_packets_received_since_last_ack_sent_;
   // Indicates how many consecutive times an ack has arrived which indicates
   // the peer needs to stop waiting for some packets.
   int stop_waiting_count_;
 
   // An alarm that fires when an ACK should be sent to the peer.
   scoped_ptr<QuicAlarm> ack_alarm_;
   // An alarm that fires when a packet needs to be retransmitted.
   scoped_ptr<QuicAlarm> retransmission_alarm_;
   // An alarm that is scheduled when the sent scheduler requires a
   // a delay before sending packets and fires when the packet may be sent.
@@ skipping 64 matching lines @@
   // If non-empty this contains the set of versions received in a
   // version negotiation packet.
   QuicVersionVector server_supported_versions_;
 
   DISALLOW_COPY_AND_ASSIGN(QuicConnection);
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_QUIC_CONNECTION_H_