Update to NSPR 4.9.5, part 1: MPL 2 upgrade only.

mozilla/nsprpub/pr/src/threads/combined/prustack.c

 /* -*- 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,
- * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
- * for the specific language governing rights and limitations under the
- * License.
- *
- * The Original Code is the Netscape Portable Runtime (NSPR).
- *
- * The Initial Developer of the Original Code is
- * Netscape Communications Corporation.
- * Portions created by the Initial Developer are Copyright (C) 1998-2000
- * the Initial Developer. All Rights Reserved.
- *
- * Contributor(s):
- *
- * Alternatively, the contents of this file may be used under the terms of
- * either the GNU General Public License Version 2 or later (the "GPL"), or
- * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
- * in which case the provisions of the GPL or the LGPL are applicable instead
- * of those above. If you wish to allow use of your version of this file only
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- * ***** END LICENSE BLOCK ***** */
+/* 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/. */
 
 #include "primpl.h"
 
 /* List of free stack virtual memory chunks */
 PRLock *_pr_stackLock;
 PRCList _pr_freeStacks = PR_INIT_STATIC_CLIST(&_pr_freeStacks);
 PRIntn _pr_numFreeStacks;
 PRIntn _pr_maxFreeStacks = 4;
 
 #ifdef DEBUG
@@ skipping 150 matching lines @@
     ** using the stack. Next time a thread is created we will trim the
     ** list down; it's safe to do it then because we will have had to
     ** context switch to a live stack before another thread can be
     ** created.
     */
     PR_Lock(_pr_stackLock);
     PR_APPEND_LINK(&ts->links, _pr_freeStacks.prev);
     _pr_numFreeStacks++;
     PR_Unlock(_pr_stackLock);
 }