Update from https://crrev.com/316786

net/quic/quic_connection_logger.h

 // Copyright (c) 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_CONNECTION_LOGGER_H_
 #define NET_QUIC_QUIC_CONNECTION_LOGGER_H_
 
 #include <bitset>
 
 #include "net/base/ip_endpoint.h"
@@ skipping 100 matching lines @@
   // At destruction time, this records results of |pacaket_received_| into
   // histograms for specific connection types.
   void RecordLossHistograms() const;
 
   BoundNetLog net_log_;
   QuicSession* session_;  // Unowned.
   // The last packet sequence number received.
   QuicPacketSequenceNumber last_received_packet_sequence_number_;
   // The size of the most recently received packet.
   size_t last_received_packet_size_;
+  // The size of the previously received packet.
+  size_t previous_received_packet_size_;
   // The largest packet sequence number received.  In the case where a packet is
   // received late (out of order), this value will not be updated.
   QuicPacketSequenceNumber largest_received_packet_sequence_number_;
   // The largest packet sequence number which the peer has failed to
   // receive, according to the missing packet set in their ack frames.
   QuicPacketSequenceNumber largest_received_missing_packet_sequence_number_;
   // Number of times that the current received packet sequence number is
   // smaller than the last received packet sequence number.
   size_t num_out_of_order_received_packets_;
+  // Number of times that the current received packet sequence number is
+  // smaller than the last received packet sequence number and where the
+  // size of the current packet is larger than the size of the previous
+  // packet.
+  size_t num_out_of_order_large_received_packets_;
   // The number of times that OnPacketHeader was called.
   // If the network replicates packets, then this number may be slightly
   // different from the real number of distinct packets received.
   QuicPacketCount num_packets_received_;
   // Number of times a truncated ACK frame was sent.
   size_t num_truncated_acks_sent_;
   // Number of times a truncated ACK frame was received.
   size_t num_truncated_acks_received_;
   // The kCADR value provided by the server in ServerHello.
   IPEndPoint local_address_from_shlo_;
@@ skipping 24 matching lines @@
   // The available type of connection (WiFi, 3G, etc.) when connection was first
   // used.
   const char* const connection_description_;
 
   DISALLOW_COPY_AND_ASSIGN(QuicConnectionLogger);
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_QUIC_CONNECTION_LOGGER_H_