Replace gfx::ClampToInt with base::saturated_cast.

ui/gfx/geometry/safe_integer_conversions_unittest.cc

 // 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.
 
 #include "ui/gfx/geometry/safe_integer_conversions.h"
 
 #include <limits>
 
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace gfx {
 
-TEST(SafeIntegerConversions, ClampToInt) {
-  EXPECT_EQ(0, ClampToInt(std::numeric_limits<float>::quiet_NaN()));
-
+TEST(SafeIntegerConversions, ToFlooredInt) {
   float max = std::numeric_limits<int>::max();
   float min = std::numeric_limits<int>::min();
   float infinity = std::numeric_limits<float>::infinity();
-
-  int int_max = std::numeric_limits<int>::max();
-  int int_min = std::numeric_limits<int>::min();
-
-  EXPECT_EQ(int_max, ClampToInt(infinity));
-  EXPECT_EQ(int_max, ClampToInt(max));
-  EXPECT_EQ(int_max, ClampToInt(max + 100));
-
-  EXPECT_EQ(-100, ClampToInt(-100.5f));
-  EXPECT_EQ(0, ClampToInt(0));
-  EXPECT_EQ(100, ClampToInt(100.5f));
-
-  EXPECT_EQ(int_min, ClampToInt(-infinity));
-  EXPECT_EQ(int_min, ClampToInt(min));
-  EXPECT_EQ(int_min, ClampToInt(min - 100));
-}
-
-TEST(SafeIntegerConversions, ToFlooredInt) {
-  EXPECT_EQ(0, ToFlooredInt(std::numeric_limits<float>::quiet_NaN()));
-
-  float max = std::numeric_limits<int>::max();
-  float min = std::numeric_limits<int>::min();
-  float infinity = std::numeric_limits<float>::infinity();
 
   int int_max = std::numeric_limits<int>::max();
   int int_min = std::numeric_limits<int>::min();
 
   EXPECT_EQ(int_max, ToFlooredInt(infinity));
   EXPECT_EQ(int_max, ToFlooredInt(max));
   EXPECT_EQ(int_max, ToFlooredInt(max + 100));
 
   EXPECT_EQ(-101, ToFlooredInt(-100.5f));
   EXPECT_EQ(0, ToFlooredInt(0.f));
   EXPECT_EQ(100, ToFlooredInt(100.5f));
 
   EXPECT_EQ(int_min, ToFlooredInt(-infinity));
   EXPECT_EQ(int_min, ToFlooredInt(min));
   EXPECT_EQ(int_min, ToFlooredInt(min - 100));
 }
 
 TEST(SafeIntegerConversions, ToCeiledInt) {
-  EXPECT_EQ(0, ToCeiledInt(std::numeric_limits<float>::quiet_NaN()));
-
   float max = std::numeric_limits<int>::max();
   float min = std::numeric_limits<int>::min();
   float infinity = std::numeric_limits<float>::infinity();
 
   int int_max = std::numeric_limits<int>::max();
   int int_min = std::numeric_limits<int>::min();
 
   EXPECT_EQ(int_max, ToCeiledInt(infinity));
   EXPECT_EQ(int_max, ToCeiledInt(max));
   EXPECT_EQ(int_max, ToCeiledInt(max + 100));
 
   EXPECT_EQ(-100, ToCeiledInt(-100.5f));
   EXPECT_EQ(0, ToCeiledInt(0.f));
   EXPECT_EQ(101, ToCeiledInt(100.5f));
 
   EXPECT_EQ(int_min, ToCeiledInt(-infinity));
   EXPECT_EQ(int_min, ToCeiledInt(min));
   EXPECT_EQ(int_min, ToCeiledInt(min - 100));
 }
 
 TEST(SafeIntegerConversions, ToRoundedInt) {
-  EXPECT_EQ(0, ToRoundedInt(std::numeric_limits<float>::quiet_NaN()));
-
   float max = std::numeric_limits<int>::max();
   float min = std::numeric_limits<int>::min();
   float infinity = std::numeric_limits<float>::infinity();
 
   int int_max = std::numeric_limits<int>::max();
   int int_min = std::numeric_limits<int>::min();
 
   EXPECT_EQ(int_max, ToRoundedInt(infinity));
   EXPECT_EQ(int_max, ToRoundedInt(max));
   EXPECT_EQ(int_max, ToRoundedInt(max + 100));
 
   EXPECT_EQ(-100, ToRoundedInt(-100.1f));
   EXPECT_EQ(-101, ToRoundedInt(-100.5f));
   EXPECT_EQ(-101, ToRoundedInt(-100.9f));
   EXPECT_EQ(0, ToRoundedInt(0.f));
   EXPECT_EQ(100, ToRoundedInt(100.1f));
   EXPECT_EQ(101, ToRoundedInt(100.5f));
   EXPECT_EQ(101, ToRoundedInt(100.9f));
 
   EXPECT_EQ(int_min, ToRoundedInt(-infinity));
   EXPECT_EQ(int_min, ToRoundedInt(min));
   EXPECT_EQ(int_min, ToRoundedInt(min - 100));
 }
 
 }  // namespace gfx