Fix net_export.h includes.

net/quic/core/quic_bandwidth.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.
 //
 // QuicBandwidth represents a bandwidth, stored in bits per second resolution.
 
 #ifndef NET_QUIC_QUIC_BANDWIDTH_H_
 #define NET_QUIC_QUIC_BANDWIDTH_H_
 
 #include <stdint.h>
 
 #include <cmath>
 #include <ostream>
 
 #include "base/compiler_specific.h"
+#include "net/base/net_export.h"
 #include "net/quic/core/quic_time.h"
 
 namespace net {
 
 typedef uint64_t QuicByteCount;
 typedef uint64_t QuicPacketCount;
 
 class NET_EXPORT_PRIVATE QuicBandwidth {
  public:
   // Creates a new QuicBandwidth with an internal value of 0.
@@ skipping 88 matching lines @@
 
 // Override stream output operator for gtest.
 inline std::ostream& operator<<(std::ostream& output,
                                 const QuicBandwidth bandwidth) {
   output << bandwidth.ToDebugValue();
   return output;
 }
 
 }  // namespace net
 #endif  // NET_QUIC_QUIC_BANDWIDTH_H_