Introduce TTL in QuicReceivedPacket.

net/tools/quic/quic_packet_reader.cc

 // Copyright 2015 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/tools/quic/quic_packet_reader.h"
 
 #include <errno.h>
 #ifndef __APPLE__
 // This is a GNU header that is not present in /usr/include on MacOS
 #include <features.h>
@@ skipping 112 matching lines @@
 
     // This isn't particularly desirable, but not all platforms support socket
     // timestamping.
     if (packet_walltimestamp.IsZero()) {
       if (fallback_walltimestamp.IsZero()) {
         fallback_walltimestamp = clock.WallNow();
       }
       packet_walltimestamp = fallback_walltimestamp;
     }
     QuicTime timestamp = clock.ConvertWallTimeToQuicTime(packet_walltimestamp);
+    int ttl = 0;
+    bool has_ttl =
+        QuicSocketUtils::GetTtlFromMsghdr(&mmsg_hdr_[i].msg_hdr, &ttl);
     QuicReceivedPacket packet(reinterpret_cast<char*>(packets_[i].iov.iov_base),
-                              mmsg_hdr_[i].msg_len, timestamp, false);
+                              mmsg_hdr_[i].msg_len, timestamp, false, ttl,
+                              has_ttl);
     IPEndPoint server_address(server_ip, port);
     processor->ProcessPacket(server_address, client_address, packet);
   }
 
   if (packets_dropped != nullptr) {
     QuicSocketUtils::GetOverflowFromMsghdr(&mmsg_hdr_[0].msg_hdr,
                                            packets_dropped);
   }
 
   // We may not have read all of the packets available on the socket.
@@ skipping 38 matching lines @@
   IPEndPoint server_address(server_ip, port);
   processor->ProcessPacket(server_address, client_address, packet);
 
   // The socket read was successful, so return true even if packet dispatch
   // failed.
   return true;
 }
 
 
 }  // namespace net