Remove implicit flooring Scale() method from Point and Size.

ui/gfx/size_conversions.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/size_conversions.h"
+
+#include "ui/gfx/safe_floor_ceil.h"
+
+namespace gfx {
+
+Size ToFlooredSize(const SizeF& size) {
+  int w = ToFlooredInt(size.width());
+  int h = ToFlooredInt(size.height());
+  return Size(w, h);
+}
+
+Size ToCeiledSize(const SizeF& size) {
+  int w = ToCeiledInt(size.width());
+  int h = ToCeiledInt(size.height());
+  return Size(w, h);
+}
+
+}  // namespace gfx
+