Remove unused member variables. No functional change.

net/quic/congestion_control/tcp_cubic_bytes_sender.cc

 // Copyright (c) 2015 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/congestion_control/tcp_cubic_bytes_sender.h"
 
 #include <algorithm>
 
 #include "net/quic/congestion_control/prr_sender.h"
 #include "net/quic/congestion_control/rtt_stats.h"
@@ skipping 30 matching lines @@
       num_connections_(kDefaultNumConnections),
       num_acked_packets_(0),
       largest_sent_packet_number_(0),
       largest_acked_packet_number_(0),
       largest_sent_at_last_cutback_(0),
       congestion_window_(initial_tcp_congestion_window * kDefaultTCPMSS),
       min_congestion_window_(kDefaultMinimumCongestionWindow),
       min4_mode_(false),
       max_congestion_window_(max_congestion_window * kDefaultTCPMSS),
       slowstart_threshold_(max_congestion_window * kDefaultTCPMSS),
-      last_cutback_exited_slowstart_(false),
-      clock_(clock) {}
+      last_cutback_exited_slowstart_(false) {}
 
 TcpCubicBytesSender::~TcpCubicBytesSender() {
 }
 
 void TcpCubicBytesSender::SetFromConfig(const QuicConfig& config,
                                         Perspective perspective) {
   if (perspective == Perspective::IS_SERVER) {
     if (config.HasReceivedConnectionOptions() &&
         ContainsQuicTag(config.ReceivedConnectionOptions(), kIW10)) {
       // Initial window experiment.
@@ skipping 285 matching lines @@
   hybrid_slow_start_.Restart();
   slowstart_threshold_ = congestion_window_ / 2;
   congestion_window_ = min_congestion_window_;
 }
 
 CongestionControlType TcpCubicBytesSender::GetCongestionControlType() const {
   return reno_ ? kRenoBytes : kCubicBytes;
 }
 
 }  // namespace net