From 6f836bed5aa0cae75771a05db75a8d0f90010643 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Emilio=20Cobos=20=C3=81lvarez?= <emilio@crisal.io>
Date: Thu, 5 Oct 2017 01:04:39 +0200
Subject: [PATCH] style: Use the flattened tree parent to find the closest
 non-nac ancestor of an element.

This only matters for document level NAC like canvas custom content, in which
case otherwise we inherit from the document element (which is wrong).

Bug: 1405635
---
 components/style/gecko/wrapper.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/components/style/gecko/wrapper.rs b/components/style/gecko/wrapper.rs
index a32d86bb3b1..7d82c6dddbc 100644
--- a/components/style/gecko/wrapper.rs
+++ b/components/style/gecko/wrapper.rs
@@ -930,7 +930,7 @@ impl<'le> TElement for GeckoElement<'le> {
 
     fn closest_non_native_anonymous_ancestor(&self) -> Option<Self> {
         debug_assert!(self.is_native_anonymous());
-        let mut parent = match self.parent_element() {
+        let mut parent = match self.traversal_parent() {
             Some(e) => e,
             None => return None,
         };
@@ -940,7 +940,7 @@ impl<'le> TElement for GeckoElement<'le> {
                 return Some(parent);
             }
 
-            parent = match parent.parent_element() {
+            parent = match parent.traversal_parent() {
                 Some(p) => p,
                 None => return None,
             };