Update freetype to 2.5.4.

third_party/freetype/src/sfnt/ttkern.h

 /***************************************************************************/
 /*                                                                         */
 /*  ttkern.h                                                               */
 /*                                                                         */
 /*    Load the basic TrueType kerning table.  This doesn't handle          */
 /*    kerning data within the GPOS table at the moment.                    */
 /*                                                                         */
 /*  Copyright 1996-2001, 2002, 2005, 2007 by                               */
 /*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
 /*                                                                         */
 /*  This file is part of the FreeType project, and may only be used,       */
 /*  modified, and distributed under the terms of the FreeType project      */
 /*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
 /*  this file you indicate that you have read the license and              */
 /*  understand and accept it fully.                                        */
 /*                                                                         */
 /***************************************************************************/
 
 
 #ifndef __TTKERN_H__
 #define __TTKERN_H__
 
 
-#include "../../include/ft2build.h"
-#include "../../include/freetype/internal/ftstream.h"
-#include "../../include/freetype/internal/tttypes.h"
+#include <ft2build.h>
+#include FT_INTERNAL_STREAM_H
+#include FT_INTERNAL_TRUETYPE_TYPES_H
 
 
 FT_BEGIN_HEADER
 
 
   FT_LOCAL( FT_Error  )
   tt_face_load_kern( TT_Face    face,
                      FT_Stream  stream );
 
   FT_LOCAL( void )
   tt_face_done_kern( TT_Face  face );
 
   FT_LOCAL( FT_Int )
   tt_face_get_kerning( TT_Face     face,
                        FT_UInt     left_glyph,
                        FT_UInt     right_glyph );
 
 #define TT_FACE_HAS_KERNING( face )  ( (face)->kern_avail_bits != 0 )
 
 
 FT_END_HEADER
 
 #endif /* __TTKERN_H__ */
 
 
 /* END */