Add unistd.h to make gcc 4.7 can compile
BUG=None
TEST=compile pass
Change-Id: I6353902cbdffc3397b5c5a3eafac667481514bbf
Reviewed-on: https://gerrit.chromium.org/gerrit/21649
Reviewed-by: <tbarzic@google.com>
Reviewed-by: Toni Barzic <tbarzic@chromium.org>
Reviewed-by: Yunlian Jiang <yunlian@chromium.org>
Tested-by: Yunlian Jiang <yunlian@chromium.org>
Commit-Ready: Yunlian Jiang <yunlian@chromium.org>
diff --git a/image_burner_utils.h b/image_burner_utils.h
index 080cb5a..58969e5 100644
--- a/image_burner_utils.h
+++ b/image_burner_utils.h
@@ -7,6 +7,7 @@
#include <fstream>
#include <string>
+#include <unistd.h>
#include "image_burner_utils_interfaces.h"
