diff -r 000000000000 -r 6474c204b198 security/sandbox/chromium/base/float_util.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/security/sandbox/chromium/base/float_util.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,36 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef BASE_FLOAT_UTIL_H_
+#define BASE_FLOAT_UTIL_H_
+
+#include "build/build_config.h"
+
+#include <float.h>
+
+#include <cmath>
+
+namespace base {
+
+template <typename Float>
+inline bool IsFinite(const Float& number) {
+#if defined(OS_POSIX)
+  return std::isfinite(number) != 0;
+#elif defined(OS_WIN)
+  return _finite(number) != 0;
+#endif
+}
+
+template <typename Float>
+inline bool IsNaN(const Float& number) {
+#if defined(OS_POSIX)
+  return std::isnan(number) != 0;
+#elif defined(OS_WIN)
+  return _isnan(number) != 0;
+#endif
+}
+
+}  // namespace base
+
+#endif  // BASE_FLOAT_UTIL_H_