Deprecate FLAG_quic_use_new_idle_timeout

net/quic/quic_connection.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/quic_connection.h"
 
 #include <string.h>
 #include <sys/types.h>
 
 #include <algorithm>
@@ skipping 2183 matching lines @@
     idle_timeout = idle_timeout.Subtract(QuicTime::Delta::FromSeconds(1));
   }
   handshake_timeout_ = handshake_timeout;
   idle_network_timeout_ = idle_timeout;
 
   SetTimeoutAlarm();
 }
 
 void QuicConnection::CheckForTimeout() {
   QuicTime now = clock_->ApproximateNow();
-  QuicTime time_of_last_packet = QuicTime::Zero();
-  if (!FLAGS_quic_use_new_idle_timeout) {
-    time_of_last_packet =
-        max(time_of_last_received_packet_, time_of_last_sent_new_packet_);
-  } else {
-    time_of_last_packet =
-        max(time_of_last_received_packet_, last_send_for_timeout_);
-  }
+  QuicTime time_of_last_packet =
+      max(time_of_last_received_packet_, last_send_for_timeout_);
 
   // |delta| can be < 0 as |now| is approximate time but |time_of_last_packet|
   // is accurate time. However, this should not change the behavior of
   // timeout handling.
   QuicTime::Delta idle_duration = now.Subtract(time_of_last_packet);
   DVLOG(1) << ENDPOINT << "last packet "
            << time_of_last_packet.ToDebuggingValue()
            << " now:" << now.ToDebuggingValue()
            << " idle_duration:" << idle_duration.ToMicroseconds()
            << " idle_network_timeout: "
@@ skipping 291 matching lines @@
 void QuicConnection::OnPathClosed(QuicPathId path_id) {
   // Stop receiving packets on this path.
   framer_.OnPathClosed(path_id);
 }
 
 bool QuicConnection::ack_frame_updated() const {
   return received_packet_manager_.ack_frame_updated();
 }
 
 }  // namespace net