From 0a82d68f3e8c6c0a0cbc72f39acc686c47557e3f Mon Sep 17 00:00:00 2001
From: Michael Howell <michael@notriddle.com>
Date: Thu, 12 Nov 2015 10:11:36 -0700
Subject: [PATCH] Use the new device viewport size for constaints.

Fixes #8443
---
 components/style/selector_matching.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/components/style/selector_matching.rs b/components/style/selector_matching.rs
index 90748ed7be9..bb063c805e3 100644
--- a/components/style/selector_matching.rs
+++ b/components/style/selector_matching.rs
@@ -222,7 +222,7 @@ impl<Impl: SelectorImplExt> Stylist<Impl> {
             .flat_map(|s| s.effective_rules(&self.device).viewport())
             .cascade();
 
-        self.viewport_constraints = ViewportConstraints::maybe_new(self.device.viewport_size, &cascaded_rule);
+        self.viewport_constraints = ViewportConstraints::maybe_new(device.viewport_size, &cascaded_rule);
         if let Some(ref constraints) = self.viewport_constraints {
             device = Device::new(MediaType::Screen, constraints.size);
         }