Add QUIC_EXPORT macros

net/quic/platform/impl/quic_chromium_clock.h

Index: net/quic/platform/impl/quic_chromium_clock.h
diff --git a/net/quic/platform/impl/quic_chromium_clock.h b/net/quic/platform/impl/quic_chromium_clock.h
index e703f246cfb5e71beee97b2d51f3043840f111e7..33c7eab79b1007a0623f5914f686f421066b35a0 100644
--- a/net/quic/platform/impl/quic_chromium_clock.h
+++ b/net/quic/platform/impl/quic_chromium_clock.h
@@ -7,12 +7,13 @@
 
 #include "base/time/time.h"
 #include "net/quic/platform/api/quic_clock.h"
+#include "net/quic/platform/api/quic_export.h"
 
 namespace net {
 
 // Clock to efficiently retrieve an approximately accurate time from an
 // EpollServer.
-class NET_EXPORT_PRIVATE QuicChromiumClock : public QuicClock {
+class QUIC_EXPORT_PRIVATE QuicChromiumClock : public QuicClock {
  public:
   QuicChromiumClock();
   ~QuicChromiumClock() override;