Update freetype sources (2.6.2) in third party.

third_party/freetype2/src/include/freetype/ftsynth.h

Index: third_party/freetype2/src/include/freetype/ftsynth.h
diff --git a/third_party/freetype2/src/include/freetype/ftsynth.h b/third_party/freetype2/src/include/freetype/ftsynth.h
new file mode 100644
index 0000000000000000000000000000000000000000..fbcbad871a92496f520fb8e0927eac9d3e329118
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+++ b/third_party/freetype2/src/include/freetype/ftsynth.h
@@ -0,0 +1,84 @@
+/***************************************************************************/
+/*                                                                         */
+/*  ftsynth.h                                                              */
+/*                                                                         */
+/*    FreeType synthesizing code for emboldening and slanting              */
+/*    (specification).                                                     */
+/*                                                                         */
+/*  Copyright 2000-2015 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.                                        */
+/*                                                                         */
+/***************************************************************************/
+
+
+  /*************************************************************************/
+  /*************************************************************************/
+  /*************************************************************************/
+  /*************************************************************************/
+  /*************************************************************************/
+  /*********                                                       *********/
+  /*********        WARNING, THIS IS ALPHA CODE!  THIS API         *********/
+  /*********    IS DUE TO CHANGE UNTIL STRICTLY NOTIFIED BY THE    *********/
+  /*********            FREETYPE DEVELOPMENT TEAM                  *********/
+  /*********                                                       *********/
+  /*************************************************************************/
+  /*************************************************************************/
+  /*************************************************************************/
+  /*************************************************************************/
+  /*************************************************************************/
+
+
+  /* Main reason for not lifting the functions in this module to a  */
+  /* `standard' API is that the used parameters for emboldening and */
+  /* slanting are not configurable.  Consider the functions as a    */
+  /* code resource that should be copied into the application and   */
+  /* adapted to the particular needs.                               */
+
+
+#ifndef __FTSYNTH_H__
+#define __FTSYNTH_H__
+
+
+#include <ft2build.h>
+#include FT_FREETYPE_H
+
+#ifdef FREETYPE_H
+#error "freetype.h of FreeType 1 has been loaded!"
+#error "Please fix the directory search order for header files"
+#error "so that freetype.h of FreeType 2 is found first."
+#endif
+
+
+FT_BEGIN_HEADER
+
+  /* Embolden a glyph by a `reasonable' value (which is highly a matter of */
+  /* taste).  This function is actually a convenience function, providing  */
+  /* a wrapper for @FT_Outline_Embolden and @FT_Bitmap_Embolden.           */
+  /*                                                                       */
+  /* For emboldened outlines the height, width, and advance metrics are    */
+  /* increased by the strength of the emboldening -- this even affects     */
+  /* mono-width fonts!                                                     */
+  /*                                                                       */
+  /* You can also call @FT_Outline_Get_CBox to get precise values.         */
+  FT_EXPORT( void )
+  FT_GlyphSlot_Embolden( FT_GlyphSlot  slot );
+
+  /* Slant an outline glyph to the right by about 12 degrees. */
+  FT_EXPORT( void )
+  FT_GlyphSlot_Oblique( FT_GlyphSlot  slot );
+
+  /* */
+
+
+FT_END_HEADER
+
+#endif /* __FTSYNTH_H__ */
+
+
+/* END */