diff -r 000000000000 -r 6474c204b198 layout/reftests/fonts/mark-generate.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/layout/reftests/fonts/mark-generate.py	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,112 @@
+#!/usr/bin/python
+# vim: set shiftwidth=4 tabstop=8 autoindent expandtab:
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+# For general fontforge documentation, see:
+#   http://fontforge.sourceforge.net/
+# For fontforge scripting documentation, see:
+#   http://fontforge.sourceforge.net/scripting-tutorial.html
+#   http://fontforge.sourceforge.net/scripting.html
+# and most importantly:
+#   http://fontforge.sourceforge.net/python.html
+
+# To install what you need, on Ubuntu,
+#   sudo apt-get install python-fontforge
+
+import fontforge
+
+# generate a set of fonts, each with our special glyph at one codepoint,
+# and nothing else
+for codepoint in range(ord("A"), ord("D") + 1):
+    for (mark, width) in [("", 1500), ("2", 1800)]:
+        charname = chr(codepoint)
+        f = fontforge.font()
+        n = "Mark" + mark + charname
+        f.fontname = n
+        f.familyname = n
+        f.fullname = n
+        f.copyright = "Copyright (c) 2008 Mozilla Corporation"
+
+        g = f.createChar(codepoint, charname)
+        g.importOutlines("mark" + mark + "-glyph.svg")
+        g.width = width
+
+        f.generate("mark" + mark + charname + ".ttf")
+        f.generate("mark" + mark + charname + ".otf")
+
+
+for codepoint in range(ord("A"), ord("A") + 1):
+    for (mark, width) in [("", 1500), ("2", 1800)]:
+        for (uposname, upos) in [("low", -350), ("high", -50)]:
+            charname = chr(codepoint)
+            f = fontforge.font()
+            n = "Mark" + mark + charname
+            f.fontname = n
+            f.familyname = n
+            f.fullname = n
+            f.descent = 400
+            f.upos = upos
+            f.uwidth = 100
+            f.copyright = "Copyright (c) 2008 Mozilla Corporation"
+    
+            g = f.createChar(codepoint, charname)
+            g.importOutlines("mark" + mark + "-glyph.svg")
+            g.width = width
+    
+            f.generate("mark" + mark + charname + "-" + uposname +
+                       "underline.ttf")
+
+# font with a ligature involving a space
+
+f = fontforge.font()
+n = "MarkAB-spaceliga"
+f.fontname = n
+f.familyname = n
+f.fullname = n
+f.copyright = "Copyright (c) 2008-2011 Mozilla Corporation"
+
+g = f.createChar(ord(" "), "space")
+g.width = 1000
+for charname in ["A", "B"]:
+    g = f.createChar(ord(charname), charname)
+    g.importOutlines("mark-glyph.svg")
+    g.width = 1500
+
+f.addLookup("liga-table", "gsub_ligature", (), (("liga",(("latn",("dflt")),)),))
+f.addLookupSubtable("liga-table", "liga-subtable")
+g = f.createChar(-1, "spaceA")
+g.glyphclass = "baseligature";
+g.addPosSub("liga-subtable", ("space", "A"))
+g.importOutlines("mark2-glyph.svg")
+g.width = 1800
+
+f.generate("markAB-spaceliga.otf")
+
+# font with a known line-height (which is greater than winascent + windescent).
+
+f = fontforge.font()
+lineheight = 1500
+n = "MarkA-lineheight" + str(lineheight)
+f.fontname = n
+f.familyname = n
+f.fullname = n
+f.copyright = "Copyright (c) 2008-2011 Mozilla Corporation"
+
+g = f.createChar(ord(" "), "space")
+g.width = 1000
+g = f.createChar(ord("A"), "A")
+g.importOutlines("mark-glyph.svg")
+g.width = 1500
+
+f.os2_typoascent_add = False
+f.os2_typoascent = 800
+f.os2_typodescent_add = False
+f.os2_typodescent = -200
+f.os2_use_typo_metrics = True
+f.os2_typolinegap = lineheight - (f.os2_typoascent - f.os2_typodescent)
+# glyph height is 800 (hhea ascender - descender)
+f.hhea_linegap = lineheight - 800
+
+f.generate("markA-lineheight" + str(lineheight) + ".ttf")