diff -r 000000000000 -r 6474c204b198 layout/style/nsCSSFontDescList.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/layout/style/nsCSSFontDescList.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,16 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* 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/. */
+
+CSS_FONT_DESC(font-family, Family)
+CSS_FONT_DESC(font-style, Style)
+CSS_FONT_DESC(font-weight, Weight)
+CSS_FONT_DESC(font-stretch, Stretch)
+CSS_FONT_DESC(src, Src)
+CSS_FONT_DESC(unicode-range, UnicodeRange)
+
+/* Note: the parsing code explicitly also accepts font-feature-settings
+         and font-language-override. */
+CSS_FONT_DESC(-moz-font-feature-settings, FontFeatureSettings)
+CSS_FONT_DESC(-moz-font-language-override, FontLanguageOverride)