Switch to standard integer types in components/, part 2 of 4.

components/nacl/browser/nacl_validation_cache.h

Index: components/nacl/browser/nacl_validation_cache.h
diff --git a/components/nacl/browser/nacl_validation_cache.h b/components/nacl/browser/nacl_validation_cache.h
index c7ca137636bd8ac0486589a34874a657d171ee7a..aa3205542e5591a9eac34e29c4e5d0e239cf7408 100644
--- a/components/nacl/browser/nacl_validation_cache.h
+++ b/components/nacl/browser/nacl_validation_cache.h
@@ -5,9 +5,12 @@
 #ifndef COMPONENTS_NACL_BROWSER_NACL_VALIDATION_CACHE_H_
 #define COMPONENTS_NACL_BROWSER_NACL_VALIDATION_CACHE_H_
 
+#include <stddef.h>
+
 #include <vector>
 
 #include "base/containers/mru_cache.h"
+#include "base/macros.h"
 
 namespace base {
 class Pickle;