From 8ec805874d90ffc31a2810b74ff84a1a5bc39266 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Emilio=20Cobos=20=C3=81lvarez?= <emilio@crisal.io>
Date: Mon, 2 Oct 2017 18:58:41 +0200
Subject: [PATCH] stylo: Restrict :-moz-system-metric to chrome and ua sheets.
 r=xidorn

Bug: 1396066
Reviewed-by: xidorn
MozReview-Commit-ID: AyHWP3QgGlA
---
 components/style/gecko/non_ts_pseudo_class_list.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/components/style/gecko/non_ts_pseudo_class_list.rs b/components/style/gecko/non_ts_pseudo_class_list.rs
index 6aa26887d12..497c806545c 100644
--- a/components/style/gecko/non_ts_pseudo_class_list.rs
+++ b/components/style/gecko/non_ts_pseudo_class_list.rs
@@ -117,8 +117,8 @@ macro_rules! apply_non_ts_list {
                 ("-moz-window-inactive", MozWindowInactive, mozWindowInactive, _, _),
             ],
             string: [
-                // FIXME(emilio): Unship this for content docs (bug 1396066).
-                ("-moz-system-metric", MozSystemMetric, mozSystemMetric, _, _),
+                ("-moz-system-metric", MozSystemMetric, mozSystemMetric, _,
+                  PSEUDO_CLASS_ENABLED_IN_UA_SHEETS_AND_CHROME),
                 ("lang", Lang, lang, _, _),
             ],
             keyword: [