Switch to standard integer types in ui/gfx/.

ui/gfx/geometry/quad_f.h

 // 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.
 
 #ifndef UI_GFX_GEOMETRY_QUAD_F_H_
 #define UI_GFX_GEOMETRY_QUAD_F_H_
 
+#include <stddef.h>
+
 #include <algorithm>
 #include <cmath>
 #include <iosfwd>
 #include <string>
 
 #include "base/logging.h"
 #include "ui/gfx/geometry/point_f.h"
 #include "ui/gfx/geometry/rect_f.h"
 #include "ui/gfx/gfx_export.h"
 
@@ skipping 101 matching lines @@
 GFX_EXPORT QuadF operator-(const QuadF& lhs, const Vector2dF& rhs);
 
 // This is declared here for use in gtest-based unit tests but is defined in
 // the gfx_test_support target. Depend on that to use this in your unit test.
 // This should not be used in production code - call ToString() instead.
 void PrintTo(const QuadF& quad, ::std::ostream* os);
 
 }  // namespace gfx
 
 #endif  // UI_GFX_GEOMETRY_QUAD_F_H_