1 files changed, 8 insertions, 0 deletions
diff --git a/components/style/context.rs b/components/style/context.rs
index befcd9d9e03..e9733cb0985 100644
--- a/components/style/context.rs
+++ b/components/style/context.rs
@@ -11,6 +11,7 @@ use bloom::StyleBloom;
 use cache::LRUCache;
 use data::{EagerPseudoStyles, ElementData};
 use dom::{OpaqueNode, TNode, TElement, SendElement};
+use euclid::ScaleFactor;
 use euclid::Size2D;
 use fnv::FnvHashMap;
 use font_metrics::FontMetricsProvider;
@@ -27,6 +28,8 @@ use std::fmt;
 use std::ops;
 #[cfg(feature = "servo")] use std::sync::Mutex;
 #[cfg(feature = "servo")] use std::sync::mpsc::Sender;
+use style_traits::CSSPixel;
+use style_traits::DevicePixel;
 use stylist::Stylist;
 use thread_state;
 use time;
@@ -152,6 +155,11 @@ impl<'a> SharedStyleContext<'a> {
     pub fn viewport_size(&self) -> Size2D<Au> {
         self.stylist.device().au_viewport_size()
     }
+
+    /// The device pixel ratio
+    pub fn device_pixel_ratio(&self) -> ScaleFactor<f32, CSSPixel, DevicePixel> {
+        self.stylist.device().device_pixel_ratio()
+    }
 }
 
 /// The structure holds various intermediate inputs that are eventually used by