Replace gfx::ClampToInt with base::saturated_cast.

base/numerics/safe_conversions_impl.h

 // Copyright 2014 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_SAFE_CONVERSIONS_IMPL_H_
 #define BASE_NUMERICS_SAFE_CONVERSIONS_IMPL_H_
 
 #include <limits>
 
 #include "base/template_util.h"
@@ skipping 130 matching lines @@
 // Signed to signed narrowing: Both the upper and lower boundaries may be
 // exceeded.
 template <typename Dst, typename Src>
 struct DstRangeRelationToSrcRangeImpl<Dst,
                                       Src,
                                       INTEGER_REPRESENTATION_SIGNED,
                                       INTEGER_REPRESENTATION_SIGNED,
                                       NUMERIC_RANGE_NOT_CONTAINED> {
   static RangeConstraint Check(Src value) {
     return std::numeric_limits<Dst>::is_iec559
-               ? GetRangeConstraint(value <= std::numeric_limits<Dst>::max(),
-                                    value >= -std::numeric_limits<Dst>::max())
-               : GetRangeConstraint(value <= std::numeric_limits<Dst>::max(),
-                                    value >= std::numeric_limits<Dst>::min());
+               ? GetRangeConstraint((value < std::numeric_limits<Dst>::max()),
+                                    (value > -std::numeric_limits<Dst>::max()))
+               : GetRangeConstraint((value < std::numeric_limits<Dst>::max()),
+                                    (value > std::numeric_limits<Dst>::min()));
   }
 };
 
 // Unsigned to unsigned narrowing: Only the upper boundary can be exceeded.
 template <typename Dst, typename Src>
 struct DstRangeRelationToSrcRangeImpl<Dst,
                                       Src,
                                       INTEGER_REPRESENTATION_UNSIGNED,
                                       INTEGER_REPRESENTATION_UNSIGNED,
                                       NUMERIC_RANGE_NOT_CONTAINED> {
   static RangeConstraint Check(Src value) {
-    return GetRangeConstraint(value <= std::numeric_limits<Dst>::max(), true);
+    return GetRangeConstraint(value < std::numeric_limits<Dst>::max(), true);
   }
 };
 
 // Unsigned to signed: The upper boundary may be exceeded.
 template <typename Dst, typename Src>
 struct DstRangeRelationToSrcRangeImpl<Dst,
                                       Src,
                                       INTEGER_REPRESENTATION_SIGNED,
                                       INTEGER_REPRESENTATION_UNSIGNED,
                                       NUMERIC_RANGE_NOT_CONTAINED> {
   static RangeConstraint Check(Src value) {
     return sizeof(Dst) > sizeof(Src)
                ? RANGE_VALID
                : GetRangeConstraint(
-                     value <= static_cast<Src>(std::numeric_limits<Dst>::max()),
+                     value < static_cast<Src>(std::numeric_limits<Dst>::max()),
                      true);
   }
 };
 
 // Signed to unsigned: The upper boundary may be exceeded for a narrower Dst,
 // and any negative value exceeds the lower boundary.
 template <typename Dst, typename Src>
 struct DstRangeRelationToSrcRangeImpl<Dst,
                                       Src,
                                       INTEGER_REPRESENTATION_UNSIGNED,
                                       INTEGER_REPRESENTATION_SIGNED,
                                       NUMERIC_RANGE_NOT_CONTAINED> {
   static RangeConstraint Check(Src value) {
     return (MaxExponent<Dst>::value >= MaxExponent<Src>::value)
                ? GetRangeConstraint(true, value >= static_cast<Src>(0))
                : GetRangeConstraint(
-                     value <= static_cast<Src>(std::numeric_limits<Dst>::max()),
+                     value < static_cast<Src>(std::numeric_limits<Dst>::max()),
                      value >= static_cast<Src>(0));
   }
 };
 
 template <typename Dst, typename Src>
 inline RangeConstraint DstRangeRelationToSrcRange(Src value) {
   static_assert(std::numeric_limits<Src>::is_specialized,
                 "Argument must be numeric.");
   static_assert(std::numeric_limits<Dst>::is_specialized,
                 "Result must be numeric.");
   return DstRangeRelationToSrcRangeImpl<Dst, Src>::Check(value);
 }
 
 }  // namespace internal
 }  // namespace base
 
 #endif  // BASE_NUMERICS_SAFE_CONVERSIONS_IMPL_H_