Remove original_path_id from SerializedPacket and OnPacketSent.

net/quic/core/quic_connection.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/core/quic_connection.h"
 
 #include <string.h>
 #include <sys/types.h>
 
 #include <algorithm>
@@ skipping 1594 matching lines @@
     QUIC_LOG_FIRST_N(ERROR, 10)
         << ENDPOINT << "failed writing " << encrypted_length
         << " bytes from host " << self_address().host().ToString()
         << " to address " << peer_address().ToString() << " with error code "
         << result.error_code;
     return false;
   }
 
   if (result.status != WRITE_STATUS_ERROR && debug_visitor_ != nullptr) {
     // Pass the write result to the visitor.
-    debug_visitor_->OnPacketSent(*packet, packet->original_path_id,
-                                 packet->original_packet_number,
+    debug_visitor_->OnPacketSent(*packet, packet->original_packet_number,
                                  packet->transmission_type, packet_send_time);
   }
   if (packet->transmission_type == NOT_RETRANSMISSION) {
     time_of_last_sent_new_packet_ = packet_send_time;
   }
   // Only adjust the last sent time (for the purpose of tracking the idle
   // timeout) if this is the first retransmittable packet sent after a
   // packet is received. If it were updated on every sent packet, then
   // sending into a black hole might never timeout.
   if (IsRetransmittable(*packet) == HAS_RETRANSMITTABLE_DATA &&
@@ skipping 820 matching lines @@
 
 void QuicConnection::CheckIfApplicationLimited() {
   if (queued_packets_.empty() &&
       !sent_packet_manager_.HasPendingRetransmissions() &&
       !visitor_->WillingAndAbleToWrite()) {
     sent_packet_manager_.OnApplicationLimited();
   }
 }
 
 }  // namespace net