From de680b06fe8e2a74062781491e84f8d1479cad51 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Emilio=20Cobos=20=C3=81lvarez?= <emilio@crisal.io>
Date: Fri, 12 May 2017 19:11:31 +0200
Subject: [PATCH] Bug 1364412: Track pseudo-element's state dependencies too.
 r=heycam
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MozReview-Commit-ID: 8zOE7TyW1xi
Signed-off-by: Emilio Cobos Álvarez <emilio@crisal.io>
---
 components/style/stylist.rs | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/components/style/stylist.rs b/components/style/stylist.rs
index 434acde02d0..5f64588d186 100644
--- a/components/style/stylist.rs
+++ b/components/style/stylist.rs
@@ -495,6 +495,9 @@ impl Stylist {
 
     #[inline]
     fn note_attribute_and_state_dependencies(&mut self, selector: &Selector<SelectorImpl>) {
+        if let Some(ref pseudo_selector) = selector.pseudo_element {
+            self.state_dependencies.insert(pseudo_selector.state());
+        }
         selector.visit(&mut AttributeAndStateDependencyVisitor(self));
     }