relnote: Remove unused QuicClock member of BbrSender.

net/quic/core/congestion_control/bbr_sender.cc

 // Copyright 2016 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/core/congestion_control/bbr_sender.h"
 
 #include <algorithm>
 #include <sstream>
 
 #include "base/stl_util.h"
@@ skipping 46 matching lines @@
       bandwidth_at_last_round(sender.bandwidth_at_last_round_),
       rounds_without_bandwidth_gain(sender.rounds_without_bandwidth_gain_),
       min_rtt(sender.min_rtt_),
       min_rtt_timestamp(sender.min_rtt_timestamp_),
       recovery_state(sender.recovery_state_),
       recovery_window(sender.recovery_window_),
       last_sample_is_app_limited(sender.last_sample_is_app_limited_) {}
 
 BbrSender::DebugState::DebugState(const DebugState& state) = default;
 
-BbrSender::BbrSender(const QuicClock* clock,
-                     const RttStats* rtt_stats,
+BbrSender::BbrSender(const RttStats* rtt_stats,
                      const QuicUnackedPacketMap* unacked_packets,
                      QuicPacketCount initial_tcp_congestion_window,
                      QuicPacketCount max_tcp_congestion_window,
                      QuicRandom* random)
-    : clock_(clock),
-      rtt_stats_(rtt_stats),
+    : rtt_stats_(rtt_stats),
       unacked_packets_(unacked_packets),
       random_(random),
       mode_(STARTUP),
       sampler_(),
       round_trip_count_(0),
       last_sent_packet_(0),
       current_round_trip_end_(0),
       max_bandwidth_(kBandwidthWindowSize, QuicBandwidth::Zero(), 0),
       min_rtt_(QuicTime::Delta::Zero()),
       min_rtt_timestamp_(QuicTime::Zero()),
@@ skipping 490 matching lines @@
   os << "Minimum RTT timestamp: " << state.min_rtt_timestamp.ToDebuggingValue()
      << std::endl;
 
   os << "Last sample is app-limited: "
      << (state.last_sample_is_app_limited ? "yes" : "no");
 
   return os;
 }
 
 }  // namespace net