Null               24 ppapi/cpp/var.h   struct Null {};
Null              139 third_party/harfbuzz-ng/src/hb-open-type-private.hh static inline const Type& Null (void) {
Null              154 third_party/harfbuzz-ng/src/hb-open-type-private.hh #define Null(Type) Null<Type>()