Update from https://crrev.com/312398

net/quic/quic_received_packet_manager.h

 // Copyright 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.
 //
 // Manages the packet entropy calculation for both sent and received packets
 // for a connection.
 
 #ifndef NET_QUIC_QUIC_RECEIVED_PACKET_MANAGER_H_
 #define NET_QUIC_QUIC_RECEIVED_PACKET_MANAGER_H_
 
@@ skipping 102 matching lines @@
   // Checks whether |sequence_number| is missing and less than largest observed.
   bool IsMissing(QuicPacketSequenceNumber sequence_number);
 
   // Checks if we're still waiting for the packet with |sequence_number|.
   bool IsAwaitingPacket(QuicPacketSequenceNumber sequence_number);
 
   // Update the |ack_frame| for an outgoing ack.
   void UpdateReceivedPacketInfo(QuicAckFrame* ack_frame,
                                 QuicTime approximate_now);
 
-  // Should be called before sending an ACK packet, to decide if we need
-  // to attach a QuicCongestionFeedbackFrame block.
-  // Returns false if no QuicCongestionFeedbackFrame block is needed.
-  // Otherwise fills in feedback and returns true.
-  virtual bool GenerateCongestionFeedback(
-      QuicCongestionFeedbackFrame* feedback);
-
   // QuicReceivedEntropyHashCalculatorInterface
   // Called by QuicFramer, when the outgoing ack gets truncated, to recalculate
   // the received entropy hash for the truncated ack frame.
   QuicPacketEntropyHash EntropyHash(
       QuicPacketSequenceNumber sequence_number) const override;
 
   // Updates internal state based on |stop_waiting|.
   void UpdatePacketInformationSentByPeer(
       const QuicStopWaitingFrame& stop_waiting);
 
@@ skipping 38 matching lines @@
   QuicConnectionStats* stats_;
 
   PacketTimeList received_packet_times_;
 
   DISALLOW_COPY_AND_ASSIGN(QuicReceivedPacketManager);
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_QUIC_RECEIVED_PACKET_MANAGER_H_