Log the QUIC transmission type in QUIC internal server trace visitor.

net/quic/quic_sent_packet_manager.h

 // Copyright 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.
 
 #ifndef NET_QUIC_QUIC_SENT_PACKET_MANAGER_H_
 #define NET_QUIC_QUIC_SENT_PACKET_MANAGER_H_
 
 #include <deque>
 #include <list>
 #include <map>
@@ skipping 39 matching lines @@
     virtual ~DebugDelegate() {}
 
     // Called when a spurious retransmission is detected.
     virtual void OnSpuriousPacketRetransmition(
         TransmissionType transmission_type,
         QuicByteCount byte_size) {}
 
     virtual void OnSentPacket(
         QuicPacketSequenceNumber sequence_number,
         QuicTime sent_time,
-        QuicByteCount bytes) {}
+        QuicByteCount bytes,
+        TransmissionType transmission_type) {}
 
     virtual void OnRetransmittedPacket(
         QuicPacketSequenceNumber old_sequence_number,
         QuicPacketSequenceNumber new_sequence_number,
         TransmissionType transmission_type,
         QuicTime time) {}
 
     virtual void OnIncomingAck(
         const QuicAckFrame& ack_frame,
         QuicTime ack_receive_time,
@@ skipping 321 matching lines @@
   // Records bandwidth from server to client in normal operation, over periods
   // of time with no loss events.
   QuicSustainedBandwidthRecorder sustained_bandwidth_recorder_;
 
   DISALLOW_COPY_AND_ASSIGN(QuicSentPacketManager);
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_QUIC_SENT_PACKET_MANAGER_H_