From a3c13d8a4031fb7e9bcabfd84d37082118deb9ff Mon Sep 17 00:00:00 2001
From: Josh Matthews <josh@joshmatthews.net>
Date: Mon, 30 Mar 2015 11:03:54 -0400
Subject: [PATCH] Make reflow queries always perform reflow. Fixes #5458.

---
 components/script/dom/window.rs       | 2 +-
 components/script/layout_interface.rs | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/components/script/dom/window.rs b/components/script/dom/window.rs
index 675af64d5cb..f4580822114 100644
--- a/components/script/dom/window.rs
+++ b/components/script/dom/window.rs
@@ -537,7 +537,7 @@ impl<'a> WindowHelpers for JSRef<'a, Window> {
         debug!("script: performing reflow for goal {:?}", goal);
 
         let root: JSRef<Node> = NodeCast::from_ref(root);
-        if !root.get_has_dirty_descendants() {
+        if query_type == ReflowQueryType::NoQuery && !root.get_has_dirty_descendants() {
             debug!("root has no dirty descendants; avoiding reflow");
             return
         }
diff --git a/components/script/layout_interface.rs b/components/script/layout_interface.rs
index 9b7e3a292ea..ab294e09436 100644
--- a/components/script/layout_interface.rs
+++ b/components/script/layout_interface.rs
@@ -92,6 +92,7 @@ pub enum ReflowGoal {
 }
 
 /// Any query to perform with this reflow.
+#[derive(PartialEq)]
 pub enum ReflowQueryType {
     NoQuery,
     ContentBoxQuery(TrustedNodeAddress),