--- src/3rdparty/chromium/third_party/angle/src/libANGLE/Constants.h.orig	2019-05-23 12:39:34 UTC
+++ src/3rdparty/chromium/third_party/angle/src/libANGLE/Constants.h
@@ -9,6 +9,7 @@
 #ifndef LIBANGLE_CONSTANTS_H_
 #define LIBANGLE_CONSTANTS_H_
 
+#include <cstddef>
 #include "common/platform.h"
 
 namespace gl
