Reland r209278

net/third_party/nss/ssl/bodge/secure_memcmp.c

Index: net/third_party/nss/ssl/bodge/secure_memcmp.c
diff --git a/net/third_party/nss/ssl/bodge/secure_memcmp.c b/net/third_party/nss/ssl/bodge/secure_memcmp.c
deleted file mode 100644
index b18579c6eaaa65bb1f5373d122d4378ca04c96b4..0000000000000000000000000000000000000000
--- a/net/third_party/nss/ssl/bodge/secure_memcmp.c
+++ /dev/null
@@ -1,59 +0,0 @@
-/* ***** 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 security libraries.
- *
- * The Initial Developer of the Original Code is
- * Netscape Communications Corporation.
- * Portions created by the Initial Developer are Copyright (C) 1994-2000
- * 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
- * under the terms of either the GPL or the LGPL, and not to allow others to
- * use your version of this file under the terms of the MPL, indicate your
- * decision by deleting the provisions above and replace them with the notice
- * and other provisions required by the GPL or the LGPL. If you do not delete
- * the provisions above, a recipient may use your version of this file under
- * the terms of any one of the MPL, the GPL or the LGPL.
- *
- * ***** END LICENSE BLOCK ***** */
-
-// This file exists to provide the secure memcmp function. This was added in
-// NSS 3.12.5.
-
-#include <stdlib.h>
-
-/*
- * Perform a constant-time compare of two memory regions. The return value is
- * 0 if the memory regions are equal and non-zero otherwise.
- */
-int
-NSS_SecureMemcmp(const void *ia, const void *ib, size_t n)
-{
-    const unsigned char *a = (const unsigned char*) ia;
-    const unsigned char *b = (const unsigned char*) ib;
-    size_t i;
-    unsigned char r = 0;
-
-    for (i = 0; i < n; ++i) {
-        r |= *a++ ^ *b++;
-    }
-
-    return r;
-}