Land Recent QUIC changes.

net/quic/quic_packet_creator.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.
 //
 // Accumulates frames for the next packet until more frames no longer fit or
 // it's time to create a packet from them.  Also provides packet creation of
 // FEC packets based on previously created packets.
 
 #ifndef NET_QUIC_QUIC_PACKET_CREATOR_H_
 #define NET_QUIC_QUIC_PACKET_CREATOR_H_
@@ skipping 15 matching lines @@
 class QuicRandom;
 
 class NET_EXPORT_PRIVATE QuicPacketCreator : public QuicFecBuilderInterface {
  public:
   // Options for controlling how packets are created.
   struct Options {
     Options()
         : max_packet_length(kMaxPacketSize),
           random_reorder(false),
           max_packets_per_fec_group(0),
-          send_guid_length(PACKET_8BYTE_GUID) {
+          send_guid_length(PACKET_8BYTE_GUID),
+          send_sequence_number_length(PACKET_6BYTE_SEQUENCE_NUMBER) {
     }
 
     size_t max_packet_length;
     bool random_reorder;   // Inefficient: rewrite if used at scale.
     // 0 indicates fec is disabled.
     size_t max_packets_per_fec_group;
     // Length of guid to send over the wire.
     QuicGuidLength send_guid_length;
+    QuicSequenceNumberLength send_sequence_number_length;
   };
 
   // QuicRandom* required for packet entropy.
   QuicPacketCreator(QuicGuid guid,
                     QuicFramer* framer,
                     QuicRandom* random_generator,
                     bool is_server);
 
   virtual ~QuicPacketCreator();
 
   // QuicFecBuilderInterface
   virtual void OnBuiltFecProtectedPayload(const QuicPacketHeader& header,
                                           base::StringPiece payload) OVERRIDE;
 
   // Checks if it's time to send an FEC packet.  |force_close| forces this to
   // return true if an fec group is open.
   bool ShouldSendFec(bool force_close) const;
 
   // Starts a new FEC group with the next serialized packet, if FEC is enabled
   // and there is not already an FEC group open.
   void MaybeStartFEC();
 
   // Makes the framer not serialize the protocol version in sent packets.
   void StopSendingVersion();
 
   // The overhead the framing will add for a packet with num_frames frames.
-  static size_t StreamFramePacketOverhead(int num_frames,
-                                          QuicGuidLength guid_length,
-                                          bool include_version,
-                                          InFecGroup is_in_fec_group);
+  static size_t StreamFramePacketOverhead(
+      int num_frames,
+      QuicGuidLength guid_length,
+      bool include_version,
+      QuicSequenceNumberLength sequence_number_length,
+      InFecGroup is_in_fec_group);
 
   bool HasRoomForStreamFrame() const;
 
   // Converts a raw payload to a frame which fits into the currently open
   // packet if there is one.  Returns the number of bytes consumed from data.
   // If data is empty and fin is true, the expected behavior is to consume the
   // fin but return 0.
   size_t CreateStreamFrame(QuicStreamId id,
                            base::StringPiece data,
                            QuicStreamOffset offset,
@@ skipping 84 matching lines @@
   size_t packet_size_;
   QuicFrames queued_frames_;
   scoped_ptr<RetransmittableFrames> queued_retransmittable_frames_;
 
   DISALLOW_COPY_AND_ASSIGN(QuicPacketCreator);
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_QUIC_PACKET_CREATOR_H_