Change the NSS and NSPR source tree to the new directory structure to be

mozilla/security/nss/lib/freebl/sysrand.c

-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-#ifdef FREEBL_NO_DEPEND
-#include "stubs.h"
-#endif
-
-#include "seccomon.h"
-
-static size_t rng_systemFromNoise(unsigned char *dest, size_t maxLen);
-
-#if defined(XP_UNIX) || defined(XP_BEOS)
-#include "unix_rand.c"
-#endif
-#ifdef XP_WIN
-#include "win_rand.c"
-#endif
-#ifdef XP_OS2
-#include "os2_rand.c"
-#endif
-
-/*
- * Normal RNG_SystemRNG() isn't available, use the system noise to collect
- * the required amount of entropy.
- */
-static size_t 
-rng_systemFromNoise(unsigned char *dest, size_t maxLen) 
-{
-   size_t retBytes = maxLen;
-
-   while (maxLen) {
-        size_t nbytes = RNG_GetNoise(dest, maxLen);
-
-        PORT_Assert(nbytes != 0);
-
-        dest += nbytes;
-        maxLen -= nbytes;
-
-        /* some hw op to try to introduce more entropy into the next
-         * RNG_GetNoise call */
-        rng_systemJitter();
-   }
-   return retBytes;
-}
-