Add QUIC_EXPORT macros

net/tools/quic/quic_default_packet_writer.h

Index: net/tools/quic/quic_default_packet_writer.h
diff --git a/net/tools/quic/quic_default_packet_writer.h b/net/tools/quic/quic_default_packet_writer.h
index 80b6021c7b42fa68c144089a30b17b68e493063a..19d75d4b30ded75f36dfd0a5b5d90ec7ed081110 100644
--- a/net/tools/quic/quic_default_packet_writer.h
+++ b/net/tools/quic/quic_default_packet_writer.h
@@ -8,8 +8,8 @@
 #include <stddef.h>
 
 #include "base/macros.h"
-#include "net/base/net_export.h"
 #include "net/quic/core/quic_packet_writer.h"
+#include "net/quic/platform/api/quic_export.h"
 #include "net/quic/platform/api/quic_socket_address.h"
 
 namespace net {
@@ -18,7 +18,7 @@ struct WriteResult;
 
 
 // Default packet writer which wraps QuicSocketUtils WritePacket.
-class NET_EXPORT_PRIVATE QuicDefaultPacketWriter : public QuicPacketWriter {
+class QUIC_EXPORT_PRIVATE QuicDefaultPacketWriter : public QuicPacketWriter {
  public:
   explicit QuicDefaultPacketWriter(int fd);
   ~QuicDefaultPacketWriter() override;