Do not convert from RectF to Rect by flooring.

ui/gfx/size.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.h"
 
 #if defined(OS_WIN)
 #include <windows.h>
 #endif
 
 #include "base/logging.h"
 #include "base/stringprintf.h"
 #include "ui/gfx/size_base.h"
-#include "ui/gfx/size_base_impl.h"
 
 namespace gfx {
 
 template class SizeBase<Size, int>;
 
 Size::Size() : SizeBase<Size, int>(0, 0) {}
 
 Size::Size(int width, int height) : SizeBase<Size, int>(0, 0) {
   set_width(width);
   set_height(height);
@@ skipping 25 matching lines @@
 CGSize Size::ToCGSize() const {
   return CGSizeMake(width(), height());
 }
 #endif
 
 std::string Size::ToString() const {
   return base::StringPrintf("%dx%d", width(), height());
 }
 
 }  // namespace gfx