Deprecate FLAGS_quic_simplify_loss_detection.

net/quic/quic_protocol.cc

 // 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.
 
 #include "net/quic/quic_protocol.h"
 
 #include "base/stl_util.h"
 #include "base/strings/string_number_conversions.h"
 #include "net/quic/quic_flags.h"
 #include "net/quic/quic_utils.h"
@@ skipping 812 matching lines @@
       transmission_type(NOT_RETRANSMISSION) {}
 
 SerializedPacket::SerializedPacket(const SerializedPacket& other) = default;
 
 SerializedPacket::~SerializedPacket() {}
 
 TransmissionInfo::TransmissionInfo()
     : encryption_level(ENCRYPTION_NONE),
       packet_number_length(PACKET_1BYTE_PACKET_NUMBER),
       bytes_sent(0),
-      nack_count(0),
       sent_time(QuicTime::Zero()),
       transmission_type(NOT_RETRANSMISSION),
       in_flight(false),
       is_unackable(false),
       has_crypto_handshake(false),
       num_padding_bytes(0),
       retransmission(0) {}
 
 TransmissionInfo::TransmissionInfo(EncryptionLevel level,
                                    QuicPacketNumberLength packet_number_length,
                                    TransmissionType transmission_type,
                                    QuicTime sent_time,
                                    QuicPacketLength bytes_sent,
                                    bool has_crypto_handshake,
                                    int num_padding_bytes)
     : encryption_level(level),
       packet_number_length(packet_number_length),
       bytes_sent(bytes_sent),
-      nack_count(0),
       sent_time(sent_time),
       transmission_type(transmission_type),
       in_flight(false),
       is_unackable(false),
       has_crypto_handshake(has_crypto_handshake),
       num_padding_bytes(num_padding_bytes),
       retransmission(0) {}
 
 TransmissionInfo::TransmissionInfo(const TransmissionInfo& other) = default;
 
 TransmissionInfo::~TransmissionInfo() {}
 
 }  // namespace net