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diff --git a/gfx/harfbuzz/src/hb-coretext.h b/gfx/harfbuzz/src/hb-coretext.h
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+/*
+ * Copyright © 2012  Mozilla Foundation.
+ *
+ *  This is part of HarfBuzz, a text shaping library.
+ *
+ * Permission is hereby granted, without written agreement and without
+ * license or royalty fees, to use, copy, modify, and distribute this
+ * software and its documentation for any purpose, provided that the
+ * above copyright notice and the following two paragraphs appear in
+ * all copies of this software.
+ *
+ * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
+ * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
+ * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
+ * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
+ * DAMAGE.
+ *
+ * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
+ * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS
+ * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
+ * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
+ *
+ * Mozilla Author(s): Jonathan Kew
+ */
+
+#ifndef HB_CORETEXT_H
+#define HB_CORETEXT_H
+
+#include "hb.h"
+
+#include <TargetConditionals.h>
+#if TARGET_OS_IPHONE
+#  include <CoreText/CoreText.h>
+#  include <CoreGraphics/CoreGraphics.h>
+#else
+#  include <ApplicationServices/ApplicationServices.h>
+#endif
+
+HB_BEGIN_DECLS
+
+
+/**
+ * HB_CORETEXT_TAG_MORT:
+ *
+ * The #hb_tag_t tag for the `mort` (glyph metamorphosis) table,
+ * which holds AAT features. 
+ *
+ * For more information, see 
+ * https://developer.apple.com/fonts/TrueType-Reference-Manual/RM06/Chap6mort.html
+ *
+ **/
+#define HB_CORETEXT_TAG_MORT HB_TAG('m','o','r','t')
+
+/**
+ * HB_CORETEXT_TAG_MORX:
+ *
+ * The #hb_tag_t tag for the `morx` (extended glyph metamorphosis)
+ * table, which holds AAT features. 
+ *
+ * For more information, see
+ * https://developer.apple.com/fonts/TrueType-Reference-Manual/RM06/Chap6morx.html
+ *
+ **/
+#define HB_CORETEXT_TAG_MORX HB_TAG('m','o','r','x')
+
+/**
+ * HB_CORETEXT_TAG_KERX:
+ *
+ * The #hb_tag_t tag for the `kerx` (extended kerning) table, which
+ * holds AAT kerning information. 
+ *
+ * For more information, see 
+ * https://developer.apple.com/fonts/TrueType-Reference-Manual/RM06/Chap6kerx.html
+ *
+ **/
+#define HB_CORETEXT_TAG_KERX HB_TAG('k','e','r','x')
+
+
+HB_EXTERN hb_face_t *
+hb_coretext_face_create (CGFontRef cg_font);
+
+HB_EXTERN hb_font_t *
+hb_coretext_font_create (CTFontRef ct_font);
+
+
+HB_EXTERN CGFontRef
+hb_coretext_face_get_cg_font (hb_face_t *face);
+
+HB_EXTERN CTFontRef
+hb_coretext_font_get_ct_font (hb_font_t *font);
+
+
+HB_END_DECLS
+
+#endif /* HB_CORETEXT_H */