Add original_path_id to SerializedPacket and OnPacketSent. No functional change expected.

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 796 matching lines @@
       encrypted_length(encrypted_length),
       has_crypto_handshake(NOT_HANDSHAKE),
       num_padding_bytes(0),
       path_id(path_id),
       packet_number(packet_number),
       packet_number_length(packet_number_length),
       encryption_level(ENCRYPTION_NONE),
       entropy_hash(entropy_hash),
       has_ack(has_ack),
       has_stop_waiting(has_stop_waiting),
+      original_path_id(kInvalidPathId),
       original_packet_number(0),
       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),
@@ skipping 24 matching lines @@
       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