Add flag counter for FLAGS_quic_reloadable_flag_quic_bbr_bandwidth_resumption

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 "net/quic/core/congestion_control/rtt_stats.h"
@@ skipping 198 matching lines @@
   }
 }
 
 void BbrSender::ResumeConnectionState(
     const CachedNetworkParameters& cached_network_params,
     bool max_bandwidth_resumption) {
   if (!FLAGS_quic_reloadable_flag_quic_bbr_bandwidth_resumption) {
     return;
   }
 
+  QUIC_FLAG_COUNT(quic_reloadable_flag_quic_bbr_bandwidth_resumption);
+
   QuicBandwidth bandwidth = QuicBandwidth::FromBytesPerSecond(
       max_bandwidth_resumption
           ? cached_network_params.max_bandwidth_estimate_bytes_per_second()
           : cached_network_params.bandwidth_estimate_bytes_per_second());
   QuicTime::Delta rtt =
       QuicTime::Delta::FromMilliseconds(cached_network_params.min_rtt_ms());
 
   max_bandwidth_.Update(bandwidth, round_trip_count_);
   if (!rtt.IsZero() && (min_rtt_ > rtt || min_rtt_.IsZero())) {
     min_rtt_ = rtt;
@@ skipping 506 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