Update NSS to NSS_3_16_RC0.

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"
 
+#ifndef XP_WIN
 static size_t rng_systemFromNoise(unsigned char *dest, size_t maxLen);
+#endif
 
 #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
 
+#ifndef XP_WIN
 /*
  * 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;
 }
-
+#endif