Update to NSS 3.12.7 and NSPR 4.8.6....

nss/mozilla/nsprpub/lib/ds/plarena.h

 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* ***** BEGIN LICENSE BLOCK *****
  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
  *
  * The contents of this file are subject to the Mozilla Public License Version
  * 1.1 (the "License"); you may not use this file except in compliance with
  * the License. You may obtain a copy of the License at
  * http://www.mozilla.org/MPL/
  *
  * Software distributed under the License is distributed on an "AS IS" basis,
@@ skipping 120 matching lines @@
             PL_ArenaCountInplaceGrowth(pool, size, incr); \
         } else { \
             p = PL_ArenaGrow(pool, p, size, incr); \
         } \
         PL_ArenaCountGrowth(pool, size, incr); \
     PR_END_MACRO
 
 #define PL_ARENA_MARK(pool) ((void *) (pool)->current->avail)
 #define PR_UPTRDIFF(p,q) ((PRUword)(p) - (PRUword)(q))
 
+#define PL_CLEAR_UNUSED_PATTERN(a, pattern) \
+           (PR_ASSERT((a)->avail <= (a)->limit), \
+           memset((void*)(a)->avail, (pattern), (a)->limit - (a)->avail))
 #ifdef DEBUG
 #define PL_FREE_PATTERN 0xDA
-#define PL_CLEAR_UNUSED(a) (PR_ASSERT((a)->avail <= (a)->limit), \
-                           memset((void*)(a)->avail, PL_FREE_PATTERN, \
-                           (a)->limit - (a)->avail))
+#define PL_CLEAR_UNUSED(a) PL_CLEAR_UNUSED_PATTERN((a), PL_FREE_PATTERN)
 #define PL_CLEAR_ARENA(a)  memset((void*)(a), PL_FREE_PATTERN, \
                            (a)->limit - (PRUword)(a))
 #else
 #define PL_CLEAR_UNUSED(a)
 #define PL_CLEAR_ARENA(a)
 #endif
 
 #define PL_ARENA_RELEASE(pool, mark) \
     PR_BEGIN_MACRO \
         char *_m = (char *)(mark); \
@@ skipping 48 matching lines @@
 #define PL_ArenaCountInplaceGrowth(ap, size, incr)      /* nothing */
 #define PL_ArenaCountGrowth(ap, size, incr)             /* nothing */
 #define PL_ArenaCountRelease(ap, mark)                  /* nothing */
 #define PL_ArenaCountRetract(ap, mark)                  /* nothing */
 
 #endif /* !PL_ARENAMETER */
 
 PR_END_EXTERN_C
 
 #endif /* plarena_h___ */