Nest a QUIC SerializedPacket inside a QUIC QueuedPacket.

net/quic/quic_connection.h

 // 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.
 //
 // The entity that handles framing writes for a Quic client or server.
 // Each QuicSession will have a connection associated with it.
 //
 // On the server side, the Dispatcher handles the raw reads, and hands off
 // packets via ProcessUdpPacket for framing and processing.
 //
@@ skipping 546 matching lines @@
  private:
   friend class test::QuicConnectionPeer;
 
   // Packets which have not been written to the wire.
   // Owns the QuicPacket* packet.
   struct QueuedPacket {
     QueuedPacket(SerializedPacket packet,
                  EncryptionLevel level,
                  TransmissionType transmission_type);
 
-    QuicPacketSequenceNumber sequence_number;
-    QuicPacket* packet;
+    SerializedPacket serialized_packet;
     const EncryptionLevel encryption_level;
     TransmissionType transmission_type;
-    HasRetransmittableData retransmittable;
-    IsHandshake handshake;
-    bool is_connection_close;
-    QuicByteCount length;
   };
 
   typedef std::list<QueuedPacket> QueuedPacketList;
   typedef std::map<QuicFecGroupNumber, QuicFecGroup*> FecGroupMap;
 
   // Writes the given packet to socket, encrypted with packet's
   // encryption_level. Returns true on successful write. Behavior is undefined
   // if connection is not established or broken. A return value of true means
   // the packet was transmitted and may be destroyed. If the packet is
   // retransmittable, WritePacket sets up retransmission for a successful write.
@@ skipping 70 matching lines @@
   void CloseFecGroupsBefore(QuicPacketSequenceNumber sequence_number);
 
   // Sets the ping alarm to the appropriate value, if any.
   void SetPingAlarm();
 
   // On arrival of a new packet, checks to see if the socket addresses have
   // changed since the last packet we saw on this connection.
   void CheckForAddressMigration(const IPEndPoint& self_address,
                                 const IPEndPoint& peer_address);
 
+  HasRetransmittableData IsRetransmittable(QueuedPacket packet);
+  bool IsConnectionClose(QueuedPacket packet);
+
   QuicFramer framer_;
   QuicConnectionHelperInterface* helper_;  // Not owned.
   QuicPacketWriter* writer_;  // Owned or not depending on |owns_writer_|.
   bool owns_writer_;
   EncryptionLevel encryption_level_;
   const QuicClock* clock_;
   QuicRandom* random_generator_;
 
   const QuicConnectionId connection_id_;
   // Address on the last successfully processed packet received from the
@@ skipping 129 matching lines @@
   // If non-empty this contains the set of versions received in a
   // version negotiation packet.
   QuicVersionVector server_supported_versions_;
 
   DISALLOW_COPY_AND_ASSIGN(QuicConnection);
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_QUIC_CONNECTION_H_