relnote: Reduce the size of QUIC's TransmissionInfo struct based on

net/quic/quic_unacked_packet_map.cc

 // Copyright 2014 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.
 
 #include "net/quic/quic_unacked_packet_map.h"
 
 #include "base/logging.h"
 #include "base/stl_util.h"
 #include "net/quic/quic_ack_notifier_manager.h"
 #include "net/quic/quic_connection_stats.h"
@@ skipping 167 matching lines @@
 
 bool QuicUnackedPacketMap::HasRetransmittableFrames(
     QuicPacketNumber packet_number) const {
   DCHECK_GE(packet_number, least_unacked_);
   DCHECK_LT(packet_number, least_unacked_ + unacked_packets_.size());
   return unacked_packets_[packet_number - least_unacked_]
              .retransmittable_frames != nullptr;
 }
 
 void QuicUnackedPacketMap::NackPacket(QuicPacketNumber packet_number,
-                                      QuicPacketCount min_nacks) {
+                                      uint16 min_nacks) {
   DCHECK_GE(packet_number, least_unacked_);
   DCHECK_LT(packet_number, least_unacked_ + unacked_packets_.size());
   unacked_packets_[packet_number - least_unacked_].nack_count = max(
       min_nacks, unacked_packets_[packet_number - least_unacked_].nack_count);
 }
 
 void QuicUnackedPacketMap::RemoveRetransmittability(
     QuicPacketNumber packet_number) {
   DCHECK_GE(packet_number, least_unacked_);
   DCHECK_LT(packet_number, least_unacked_ + unacked_packets_.size());
@@ skipping 186 matching lines @@
 }
 
 void QuicUnackedPacketMap::PopLeastUnacked() {
   ack_notifier_manager_->OnPacketRemoved(least_unacked_);
 
   unacked_packets_.pop_front();
   ++least_unacked_;
 }
 
 }  // namespace net