Simplify RTO interaction between the QUIC sent packet manager and the

net/quic/congestion_control/inter_arrival_probe.h

 // Copyright (c) 2013 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.
 
 // Class that handle the initial probing phase of inter arrival congestion
 // control.
 #ifndef NET_QUIC_CONGESTION_CONTROL_INTER_ARRIVAL_PROBE_H_
 #define NET_QUIC_CONGESTION_CONTROL_INTER_ARRIVAL_PROBE_H_
 
 #include "base/basictypes.h"
@@ skipping 11 matching lines @@
 
   void set_max_segment_size(QuicByteCount max_segment_size);
 
   // Call every time a packet is sent to the network.
   void OnPacketSent(QuicByteCount bytes);
 
   // Call once for each sent packet that we receive an acknowledgement from
   // the peer for.
   void OnAcknowledgedPacket(QuicByteCount bytes);
 
+  // Called when the RTO fires, and all packets have been lost.
+  void OnRetransmissionTimeout();
+
   // Call to get the number of bytes that can be sent as part of this probe.
   QuicByteCount GetAvailableCongestionWindow();
 
   // Call once for each sent packet we receive a congestion feedback from the
   // peer for.
   // If a peer sends both and ack and feedback for a sent packet, both
   // OnAcknowledgedPacket and OnIncomingFeedback should be called.
   void OnIncomingFeedback(QuicPacketSequenceNumber sequence_number,
                           QuicByteCount bytes_sent,
                           QuicTime time_sent,
@@ skipping 10 matching lines @@
   QuicPacketSequenceNumber first_sequence_number_;
   bool estimate_available_;
   QuicBandwidth available_channel_estimate_;
   QuicByteCount unacked_data_;
 
   DISALLOW_COPY_AND_ASSIGN(InterArrivalProbe);
 };
 
 }  // namespace net
 #endif  // NET_QUIC_CONGESTION_CONTROL_INTER_ARRIVAL_PROBE_H_