Remove FEC from send path.

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 326 matching lines @@
       const CachedNetworkParameters& cached_network_params,
       bool max_bandwidth_resumption);
 
   // Sets the number of active streams on the connection for congestion control.
   void SetNumOpenStreams(size_t num_streams);
 
   // Send the data in |data| to the peer in as few packets as possible.
   // Returns a pair with the number of bytes consumed from data, and a boolean
   // indicating if the fin bit was consumed.  This does not indicate the data
   // has been sent on the wire: it may have been turned into a packet and queued
-  // if the socket was unexpectedly blocked. |fec_protection| indicates if
-  // data is to be FEC protected. Note that data that is sent immediately
-  // following MUST_FEC_PROTECT data may get protected by falling within the
-  // same FEC group.
+  // if the socket was unexpectedly blocked.
   // If |listener| is provided, then it will be informed once ACKs have been
   // received for all the packets written in this call.
   // The |listener| is not owned by the QuicConnection and must outlive it.
   virtual QuicConsumedData SendStreamData(QuicStreamId id,
                                           QuicIOVector iov,
                                           QuicStreamOffset offset,
                                           bool fin,
-                                          FecProtection fec_protection,
                                           QuicAckListenerInterface* listener);
 
   // Send a RST_STREAM frame to the peer.
   virtual void SendRstStream(QuicStreamId id,
                              QuicRstStreamErrorCode error,
                              QuicStreamOffset bytes_written);
 
   // Send a BLOCKED frame to the peer.
   virtual void SendBlocked(QuicStreamId id);
 
@@ skipping 100 matching lines @@
   // QuicPacketGenerator::DelegateInterface
   bool ShouldGeneratePacket(HasRetransmittableData retransmittable,
                             IsHandshake handshake) override;
   void PopulateAckFrame(QuicAckFrame* ack) override;
   void PopulateStopWaitingFrame(QuicStopWaitingFrame* stop_waiting) override;
 
   // QuicPacketCreator::DelegateInterface
   void OnSerializedPacket(SerializedPacket* packet) override;
   void OnUnrecoverableError(QuicErrorCode error,
                             ConnectionCloseSource source) override;
-  void OnResetFecGroup() override;
 
   // QuicSentPacketManager::NetworkChangeVisitor
   void OnCongestionWindowChange() override;
   void OnRttChange() override;
   void OnPathDegrading() override;
 
   // Called by the crypto stream when the handshake completes. In the server's
   // case this is when the SHLO has been ACKed. Clients call this on receipt of
   // the SHLO.
   void OnHandshakeComplete();
@@ skipping 64 matching lines @@
   // Sends a ping frame.
   void SendPing();
 
   // Sets up a packet with an QuicAckFrame and sends it out.
   void SendAck();
 
   // Called when an RTO fires.  Resets the retransmission alarm if there are
   // remaining unacked packets.
   void OnRetransmissionTimeout();
 
-  // Called when a data packet is sent. Starts an alarm if the data sent in
-  // |packet_number| was FEC protected.
-  void MaybeSetFecAlarm(QuicPacketNumber packet_number);
-
   // Retransmits all unacked packets with retransmittable frames if
   // |retransmission_type| is ALL_UNACKED_PACKETS, otherwise retransmits only
   // initially encrypted packets. Used when the negotiated protocol version is
   // different from what was initially assumed and when the initial encryption
   // changes.
   void RetransmitUnackedPackets(TransmissionType retransmission_type);
 
   // Calls |sent_packet_manager_|'s NeuterUnencryptedPackets. Used when the
   // connection becomes forward secure and hasn't received acks for all packets.
   void NeuterUnencryptedPackets();
@@ skipping 393 matching lines @@
   QuicArenaScopedPtr<QuicAlarm> ping_alarm_;
   // An alarm that fires when an MTU probe should be sent.
   QuicArenaScopedPtr<QuicAlarm> mtu_discovery_alarm_;
 
   // Neither visitor is owned by this class.
   QuicConnectionVisitorInterface* visitor_;
   QuicConnectionDebugVisitor* debug_visitor_;
 
   QuicPacketGenerator packet_generator_;
 
-  // An alarm that fires when an FEC packet should be sent.
-  QuicArenaScopedPtr<QuicAlarm> fec_alarm_;
-
   // Network idle time before this connection is closed.
   QuicTime::Delta idle_network_timeout_;
   // The connection will wait this long for the handshake to complete.
   QuicTime::Delta handshake_timeout_;
 
   // Statistics for this session.
   QuicConnectionStats stats_;
 
   // The time that we got a packet for this connection.
   // This is used for timeouts, and does not indicate the packet was processed.
@@ skipping 78 matching lines @@
 
   // If true, multipath is enabled for this connection.
   bool multipath_enabled_;
 
   DISALLOW_COPY_AND_ASSIGN(QuicConnection);
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_QUIC_CONNECTION_H_