--- media/filters/vp9_parser.h.orig	2021-04-14 18:41:05 UTC
+++ media/filters/vp9_parser.h
@@ -14,6 +14,7 @@
 
 #include <stddef.h>
 #include <stdint.h>
+#include <unistd.h>
 #include <sys/types.h>
 
 #include <memory>
