Merge "Include what you use: <unistd.h>" am: c0aff669f8

Change-Id: I16d9175cc467112187272f0a79c7dcb8c1d98036
diff --git a/opengl/libs/EGL/FileBlobCache.cpp b/opengl/libs/EGL/FileBlobCache.cpp
index 96a29e1..3284778 100644
--- a/opengl/libs/EGL/FileBlobCache.cpp
+++ b/opengl/libs/EGL/FileBlobCache.cpp
@@ -21,6 +21,7 @@
 #include <inttypes.h>
 #include <sys/mman.h>
 #include <sys/stat.h>
+#include <unistd.h>
 
 #include <log/log.h>