Update freetype to 2.5.4.

Put freetype into third_party directory, cleaning up header files.

Previously freetype header files are in core/src/fxge/freetype and core/include/thirdparties. There were also multiple fx_freetype.h.

This patch removes the additional Foxit wrapper to make further update easier.

Notice, for original freetype source code, the following files are modified and need to be updated accordingly in future update:

third_party/freetype/include/config/ftmodule.h
third_party/freetype/include/config/ftoption.h

BUG=407341
R=thestig@chromium.org

Review URL: https://codereview.chromium.org/815103002

1 files changed, 110 insertions, 0 deletions

diff --git a/third_party/freetype/src/truetype/ttsubpix.h b/third_party/freetype/src/truetype/ttsubpix.h
new file mode 100644
index 0000000000..8a54fc7cc7
--- /dev/null
+++ b/third_party/freetype/src/truetype/ttsubpix.h
@@ -0,0 +1,110 @@
+/***************************************************************************/
+/*                                                                         */
+/*  ttsubpix.h                                                             */
+/*                                                                         */
+/*    TrueType Subpixel Hinting.                                           */
+/*                                                                         */
+/*  Copyright 2010-2013 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 __TTSUBPIX_H__
+#define __TTSUBPIX_H__
+
+#include <ft2build.h>
+#include "ttobjs.h"
+#include "ttinterp.h"
+
+
+FT_BEGIN_HEADER
+
+
+#ifdef TT_CONFIG_OPTION_SUBPIXEL_HINTING
+
+  /*************************************************************************/
+  /*                                                                       */
+  /* ID flags to identify special functions at FDEF and runtime.           */
+  /*                                                                       */
+  /*                                                                       */
+#define SPH_FDEF_INLINE_DELTA_1       0x0000001
+#define SPH_FDEF_INLINE_DELTA_2       0x0000002
+#define SPH_FDEF_DIAGONAL_STROKE      0x0000004
+#define SPH_FDEF_VACUFORM_ROUND_1     0x0000008
+#define SPH_FDEF_TTFAUTOHINT_1        0x0000010
+#define SPH_FDEF_SPACING_1            0x0000020
+#define SPH_FDEF_SPACING_2            0x0000040
+#define SPH_FDEF_TYPEMAN_STROKES      0x0000080
+#define SPH_FDEF_TYPEMAN_DIAGENDCTRL  0x0000100
+
+
+  /*************************************************************************/
+  /*                                                                       */
+  /* Tweak flags that are set for each glyph by the below rules.           */
+  /*                                                                       */
+  /*                                                                       */
+#define SPH_TWEAK_ALLOW_X_DMOVE                   0x0000001
+#define SPH_TWEAK_ALWAYS_DO_DELTAP                0x0000002
+#define SPH_TWEAK_ALWAYS_SKIP_DELTAP              0x0000004
+#define SPH_TWEAK_COURIER_NEW_2_HACK              0x0000008
+#define SPH_TWEAK_DEEMBOLDEN                      0x0000010
+#define SPH_TWEAK_DO_SHPIX                        0x0000020
+#define SPH_TWEAK_EMBOLDEN                        0x0000040
+#define SPH_TWEAK_MIAP_HACK                       0x0000080
+#define SPH_TWEAK_NORMAL_ROUND                    0x0000100
+#define SPH_TWEAK_NO_ALIGNRP_AFTER_IUP            0x0000200
+#define SPH_TWEAK_NO_CALL_AFTER_IUP               0x0000400
+#define SPH_TWEAK_NO_DELTAP_AFTER_IUP             0x0000800
+#define SPH_TWEAK_PIXEL_HINTING                   0x0001000
+#define SPH_TWEAK_RASTERIZER_35                   0x0002000
+#define SPH_TWEAK_ROUND_NONPIXEL_Y_MOVES          0x0004000
+#define SPH_TWEAK_SKIP_IUP                        0x0008000
+#define SPH_TWEAK_SKIP_NONPIXEL_Y_MOVES           0x0010000
+#define SPH_TWEAK_SKIP_OFFPIXEL_Y_MOVES           0x0020000
+#define SPH_TWEAK_TIMES_NEW_ROMAN_HACK            0x0040000
+#define SPH_TWEAK_SKIP_NONPIXEL_Y_MOVES_DELTAP    0x0080000
+
+
+  FT_LOCAL( FT_Bool )
+  sph_test_tweak( TT_Face               face,
+                  const FT_String*      family,
+                  FT_UInt               ppem,
+                  const FT_String*      style,
+                  FT_UInt               glyph_index,
+                  const SPH_TweakRule*  rule,
+                  FT_UInt               num_rules );
+
+  FT_LOCAL( FT_UInt )
+  sph_test_tweak_x_scaling( TT_Face           face,
+                            const FT_String*  family,
+                            FT_UInt           ppem,
+                            const FT_String*  style,
+                            FT_UInt           glyph_index );
+
+  FT_LOCAL( void )
+  sph_set_tweaks( TT_Loader  loader,
+                  FT_UInt    glyph_index );
+
+
+  /* These macros are defined absent a method for setting them */
+#define SPH_OPTION_BITMAP_WIDTHS           FALSE
+#define SPH_OPTION_SET_SUBPIXEL            TRUE
+#define SPH_OPTION_SET_GRAYSCALE           FALSE
+#define SPH_OPTION_SET_COMPATIBLE_WIDTHS   FALSE
+#define SPH_OPTION_SET_RASTERIZER_VERSION  38
+
+#endif /* TT_CONFIG_OPTION_SUBPIXEL_HINTING */
+
+
+FT_END_HEADER
+
+#endif /* __TTSUBPIX_H__ */
+
+/* END */