Deprecate quic_respect_send_alarm2.

net/quic/congestion_control/tcp_cubic_sender_base.cc

 // Copyright (c) 2012 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_sender_packets.h"
 
 #include <algorithm>
 
 #include "base/metrics/histogram_macros.h"
 #include "net/quic/congestion_control/prr_sender.h"
@@ skipping 160 matching lines @@
   largest_sent_packet_number_ = packet_number;
   hybrid_slow_start_.OnPacketSent(packet_number);
   return true;
 }
 
 QuicTime::Delta TcpCubicSenderBase::TimeUntilSend(
     QuicTime /* now */,
     QuicByteCount bytes_in_flight,
     HasRetransmittableData has_retransmittable_data) const {
   if (has_retransmittable_data == NO_RETRANSMITTABLE_DATA) {
-    DCHECK(!FLAGS_quic_respect_send_alarm2);
+    QUIC_BUG << "TimeUntilSend's has_retransmittable_data argument deprecated.";
     // For TCP we can always send an ACK immediately.
     return QuicTime::Delta::Zero();
   }
   if (InRecovery()) {
     // PRR is used when in recovery.
     return prr_.TimeUntilSend(GetCongestionWindow(), bytes_in_flight,
                               GetSlowStartThreshold());
   }
   if (GetCongestionWindow() > bytes_in_flight) {
     return QuicTime::Delta::Zero();
@@ skipping 66 matching lines @@
 void TcpCubicSenderBase::OnConnectionMigration() {
   hybrid_slow_start_.Restart();
   prr_ = PrrSender();
   largest_sent_packet_number_ = 0;
   largest_acked_packet_number_ = 0;
   largest_sent_at_last_cutback_ = 0;
   last_cutback_exited_slowstart_ = false;
 }
 
 }  // namespace net