Fix net_export.h includes.

net/quic/core/quic_sent_packet_manager.h

 // 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.
 
 #ifndef NET_QUIC_QUIC_SENT_PACKET_MANAGER_H_
 #define NET_QUIC_QUIC_SENT_PACKET_MANAGER_H_
 
 #include <stddef.h>
 
 #include <map>
 #include <memory>
 #include <set>
 #include <utility>
 #include <vector>
 
 #include "base/macros.h"
 #include "net/base/linked_hash_map.h"
+#include "net/base/net_export.h"
 #include "net/quic/core/congestion_control/general_loss_algorithm.h"
 #include "net/quic/core/congestion_control/loss_detection_interface.h"
 #include "net/quic/core/congestion_control/pacing_sender.h"
 #include "net/quic/core/congestion_control/rtt_stats.h"
 #include "net/quic/core/congestion_control/send_algorithm_interface.h"
 #include "net/quic/core/quic_protocol.h"
 #include "net/quic/core/quic_sent_packet_manager_interface.h"
 #include "net/quic/core/quic_unacked_packet_map.h"
 
 namespace net {
@@ skipping 380 matching lines @@
   // Records bandwidth from server to client in normal operation, over periods
   // of time with no loss events.
   QuicSustainedBandwidthRecorder sustained_bandwidth_recorder_;
 
   DISALLOW_COPY_AND_ASSIGN(QuicSentPacketManager);
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_QUIC_SENT_PACKET_MANAGER_H_