Make scroll offset type of float in cc

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"
 
@@ skipping 30 matching lines @@
   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));
+  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));
+  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()));
 
@@ skipping 15 matching lines @@
   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