Fix build/dependency issue.

bug 10427951

Change-Id: I798a0014f299b22c26bea3205823fcbb64f7ec70
diff --git a/cpp/Element.cpp b/cpp/Element.cpp
index 8223f99..db7df64 100644
--- a/cpp/Element.cpp
+++ b/cpp/Element.cpp
@@ -18,6 +18,7 @@
 #include <string.h>
 
 #include "RenderScript.h"
+#include "rsCppInternal.h"
 
 using namespace android;
 using namespace RSC;