deprecate FLAGS_quic_disable_pre_34

net/quic/core/quic_sent_packet_manager.cc

 // Copyright 2013 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/quic_sent_packet_manager.h"
 
 #include <algorithm>
 #include <string>
 
 #include "base/logging.h"
@@ skipping 291 matching lines @@
   // incoming_ack shows they've been seen by the peer.
   QuicTime::Delta ack_delay_time = ack_frame.ack_delay_time;
   QuicPacketNumber packet_number = unacked_packets_.GetLeastUnacked();
   for (QuicUnackedPacketMap::iterator it = unacked_packets_.begin();
        it != unacked_packets_.end(); ++it, ++packet_number) {
     if (packet_number > ack_frame.largest_observed) {
       // These packets are still in flight.
       break;
     }
 
-    if ((ack_frame.missing && ack_frame.packets.Contains(packet_number)) ||
-        (!ack_frame.missing && !ack_frame.packets.Contains(packet_number))) {
+    if (!ack_frame.packets.Contains(packet_number)) {
       // Packet is still missing.
       continue;
     }
     // Packet was acked, so remove it from our unacked packet list.
     DVLOG(1) << ENDPOINT << "Got an ack for packet " << packet_number;
     // If data is associated with the most recent transmission of this
     // packet, then inform the caller.
     if (it->in_flight) {
       packets_acked_.push_back(std::make_pair(packet_number, it->bytes_sent));
     } else if (!it->is_unackable) {
@@ skipping 695 matching lines @@
 
 void QuicSentPacketManager::RemoveObsoletePackets() {
   unacked_packets_.RemoveObsoletePackets();
 }
 
 void QuicSentPacketManager::OnApplicationLimited() {
   send_algorithm_->OnApplicationLimited(unacked_packets_.bytes_in_flight());
 }
 
 }  // namespace net