Add QUIC_NO_EXPORT

Change-Id: Ic6e48be74428496bf989f638056880531f3ad06e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1885392
Commit-Queue: David Schinazi <dschinazi@chromium.org>
Auto-Submit: David Schinazi <dschinazi@chromium.org>
Reviewed-by: Nick Harper <nharper@chromium.org>
Cr-Commit-Position: refs/heads/master@{#710165}

net/quic/platform/impl/quic_export_impl.h

@@ -7,7 +7,11 @@
 
 #include "net/base/net_export.h"
 
+// These macros are documented in:
+// net/third_party/quiche/src/quic/platform/api/quic_export.h
+
 #define QUIC_EXPORT NET_EXPORT
 #define QUIC_EXPORT_PRIVATE NET_EXPORT_PRIVATE
+#define QUIC_NO_EXPORT
 
 #endif  // NET_QUIC_PLATFORM_IMPL_QUIC_EXPORT_IMPL_H_