From d8203e6f6b73068e81523815e14b5712b9a7e02d Mon Sep 17 00:00:00 2001
From: Ms2ger <Ms2ger@gmail.com>
Date: Tue, 11 Oct 2016 11:13:53 +0200
Subject: [PATCH] Use mem::replace in take_pseudo_styles.

---
 components/script/layout_wrapper.rs | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/components/script/layout_wrapper.rs b/components/script/layout_wrapper.rs
index f2947bedc93..292c3b044e4 100644
--- a/components/script/layout_wrapper.rs
+++ b/components/script/layout_wrapper.rs
@@ -52,7 +52,7 @@ use selectors::matching::ElementFlags;
 use selectors::parser::{AttrSelector, NamespaceConstraint};
 use std::fmt;
 use std::marker::PhantomData;
-use std::mem::transmute;
+use std::mem::{replace, transmute};
 use std::sync::Arc;
 use std::sync::atomic::Ordering;
 use string_cache::{Atom, Namespace};
@@ -251,10 +251,7 @@ impl<'ln> TNode for ServoLayoutNode<'ln> {
     }
 
     fn take_pseudo_styles(&self) -> PseudoStyles {
-        use std::mem;
-        let mut tmp = PseudoStyles::default();
-        mem::swap(&mut tmp, &mut self.mutate_data().unwrap().per_pseudo);
-        tmp
+        replace(&mut self.mutate_data().unwrap().per_pseudo, PseudoStyles::default())
     }
 
     fn set_pseudo_styles(&self, styles: PseudoStyles) {