Add support for running the NaCl plugin in the Linux SUID sandbox

base/rand_util_posix.cc

Index: base/rand_util_posix.cc
diff --git a/base/rand_util_posix.cc b/base/rand_util_posix.cc
index c65551df50134b08f184fca51423860c2de61003..43dfd1e7904914e71eea5eb235526ab42cecde48 100644
--- a/base/rand_util_posix.cc
+++ b/base/rand_util_posix.cc
@@ -3,6 +3,7 @@
 // found in the LICENSE file.
 
 #include "base/rand_util.h"
+#include "base/rand_util_c.h"
 
 #include <errno.h>
 #include <fcntl.h>
@@ -54,3 +55,7 @@ uint64 RandUint64() {
 }
 
 }  // namespace base
+
+int GetUrandomFD(void) {
+  return g_urandom_fd.Pointer()->fd();
+}