1 files changed, 39 insertions, 0 deletions
diff --git a/gfx/angle/checkout/src/common/third_party/base/anglebase/numerics/ranges.h b/gfx/angle/checkout/src/common/third_party/base/anglebase/numerics/ranges.h
new file mode 100644
index 0000000000..55a5a295af
--- /dev/null
+++ b/gfx/angle/checkout/src/common/third_party/base/anglebase/numerics/ranges.h
@@ -0,0 +1,39 @@
+// Copyright 2017 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_NUMERICS_RANGES_H_
+#define BASE_NUMERICS_RANGES_H_
+
+#include <algorithm>
+#include <cmath>
+
+namespace base
+{
+
+// DO NOT USE THIS FUNCTION. IT IS DUE TO BE REMOVED. https://crbug.com/1231569
+// Please use base::clamp() from base/cxx17_backports.h instead.
+//
+// This function, unlike base::clamp(), does not check if `min` is greater than
+// `max`, and returns a bogus answer if it is. Please migrate all code that
+// calls this function to use base::clamp() instead.
+//
+// If, for some reason the broken behavior is required, please re-create this
+// min/max nesting inline in the host code and explain with a comment why it
+// is needed.
+template <class T>
+constexpr const T &BrokenClampThatShouldNotBeUsed(const T &value, const T &min, const T &max)
+{
+    return std::min(std::max(value, min), max);
+}
+
+template <typename T>
+constexpr bool IsApproximatelyEqual(T lhs, T rhs, T tolerance)
+{
+    static_assert(std::is_arithmetic<T>::value, "Argument must be arithmetic");
+    return std::abs(rhs - lhs) <= tolerance;
+}
+
+}  // namespace base
+
+#endif  // BASE_NUMERICS_RANGES_H_