Fix net_export.h includes.

net/quic/core/quic_connection.h

 // 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.
 //
 // The entity that handles framing writes for a Quic client or server.
 // Each QuicSession will have a connection associated with it.
 //
 // On the server side, the Dispatcher handles the raw reads, and hands off
 // packets via ProcessUdpPacket for framing and processing.
 //
@@ skipping 14 matching lines @@
 #include <memory>
 #include <queue>
 #include <string>
 #include <vector>
 
 #include "base/logging.h"
 #include "base/macros.h"
 #include "base/strings/string_piece.h"
 #include "net/base/ip_address.h"
 #include "net/base/ip_endpoint.h"
+#include "net/base/net_export.h"
 #include "net/quic/core/crypto/quic_decrypter.h"
 #include "net/quic/core/quic_alarm.h"
 #include "net/quic/core/quic_alarm_factory.h"
 #include "net/quic/core/quic_blocked_writer_interface.h"
 #include "net/quic/core/quic_connection_stats.h"
 #include "net/quic/core/quic_framer.h"
 #include "net/quic/core/quic_multipath_sent_packet_manager.h"
 #include "net/quic/core/quic_one_block_arena.h"
 #include "net/quic/core/quic_packet_creator.h"
 #include "net/quic/core/quic_packet_generator.h"
@@ skipping 1062 matching lines @@
   // Indicates whether a write error is encountered currently. This is used to
   // avoid infinite write errors.
   bool write_error_occured_;
 
   DISALLOW_COPY_AND_ASSIGN(QuicConnection);
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_QUIC_CONNECTION_H_