Remove QUIC's ReceiveAlgorithmInterface now that it does nothing.

net/quic/quic_received_packet_manager.cc

 // 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.
 
 #include "net/quic/quic_received_packet_manager.h"
 
 #include <limits>
 #include <utility>
 
 #include "base/logging.h"
@@ skipping 117 matching lines @@
 AdvanceFirstGapAndGarbageCollectEntropyMap() {
   while (!packets_entropy_.empty() && packets_entropy_.front().second) {
     ++first_gap_;
     packets_entropy_.pop_front();
   }
 }
 
 QuicReceivedPacketManager::QuicReceivedPacketManager(QuicConnectionStats* stats)
     : peer_least_packet_awaiting_ack_(0),
       time_largest_observed_(QuicTime::Zero()),
-      receive_algorithm_(ReceiveAlgorithmInterface::Create()),
       stats_(stats) {
   ack_frame_.largest_observed = 0;
   ack_frame_.entropy_hash = 0;
 }
 
 QuicReceivedPacketManager::~QuicReceivedPacketManager() {}
 
 void QuicReceivedPacketManager::RecordPacketReceived(
     QuicByteCount bytes,
     const QuicPacketHeader& header,
@@ skipping 22 matching lines @@
     stats_->max_time_reordering_us = max(stats_->max_time_reordering_us,
                                          reordering_time_us);
   }
   if (sequence_number > ack_frame_.largest_observed) {
     ack_frame_.largest_observed = sequence_number;
     time_largest_observed_ = receipt_time;
   }
   entropy_tracker_.RecordPacketEntropyHash(sequence_number,
                                            header.entropy_hash);
 
-  receive_algorithm_->RecordIncomingPacket(
-      bytes, sequence_number, receipt_time);
-
   received_packet_times_.push_back(
       std::make_pair(sequence_number, receipt_time));
 
   ack_frame_.revived_packets.erase(sequence_number);
 }
 
 void QuicReceivedPacketManager::RecordPacketRevived(
     QuicPacketSequenceNumber sequence_number) {
   LOG_IF(DFATAL, !IsAwaitingPacket(sequence_number));
   ack_frame_.revived_packets.insert(sequence_number);
@@ skipping 88 matching lines @@
   return !ack_frame_.missing_packets.empty() &&
       (ack_frame_.largest_observed -
        *ack_frame_.missing_packets.rbegin()) <= kMaxPacketsAfterNewMissing;
 }
 
 size_t QuicReceivedPacketManager::NumTrackedPackets() const {
   return entropy_tracker_.size();
 }
 
 }  // namespace net