diff -r 000000000000 -r 6474c204b198 layout/style/nsCSSKeywords.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/layout/style/nsCSSKeywords.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,42 @@
+/* -*- 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/. */
+
+/* keywords used within CSS property values */
+
+#ifndef nsCSSKeywords_h___
+#define nsCSSKeywords_h___
+
+#include "nsStringFwd.h"
+
+/*
+   Declare the enum list using the magic of preprocessing
+   enum values are "eCSSKeyword_foo" (where foo is the keyword)
+
+   To change the list of keywords, see nsCSSKeywordList.h
+
+ */
+#define CSS_KEY(_name,_id) eCSSKeyword_##_id,
+enum nsCSSKeyword {
+  eCSSKeyword_UNKNOWN = -1,
+#include "nsCSSKeywordList.h"
+  eCSSKeyword_COUNT
+};
+#undef CSS_KEY
+
+
+class nsCSSKeywords {
+public:
+  static void AddRefTable(void);
+  static void ReleaseTable(void);
+
+  // Given a keyword string, return the enum value
+  static nsCSSKeyword LookupKeyword(const nsACString& aKeyword);
+  static nsCSSKeyword LookupKeyword(const nsAString& aKeyword);
+
+  // Given a keyword enum, get the string value
+  static const nsAFlatCString& GetStringValue(nsCSSKeyword aKeyword);
+};
+
+#endif /* nsCSSKeywords_h___ */