diff --git a/components/script/dom/attr.rs b/components/script/dom/attr.rs
index 3e3979dbaef..8995f63ec2d 100644
--- a/components/script/dom/attr.rs
+++ b/components/script/dom/attr.rs
@@ -306,6 +306,7 @@ impl<'a> AttrHelpers<'a> for JSRef<'a, Attr> {
 
 #[allow(unsafe_code)]
 pub trait AttrHelpersForLayout {
+    unsafe fn value_forever(&self) -> &'static AttrValue;
     unsafe fn value_ref_forever(&self) -> &'static str;
     unsafe fn value_atom_forever(&self) -> Option<Atom>;
     unsafe fn value_tokens_forever(&self) -> Option<&'static [Atom]>;
@@ -314,6 +315,12 @@ pub trait AttrHelpersForLayout {
 
 #[allow(unsafe_code)]
 impl AttrHelpersForLayout for Attr {
+    #[inline]
+    unsafe fn value_forever(&self) -> &'static AttrValue {
+        // This transmute is used to cheat the lifetime restriction.
+        mem::transmute::<&AttrValue, &AttrValue>(self.value.borrow_for_layout())
+    }
+
     #[inline]
     unsafe fn value_ref_forever(&self) -> &'static str {
         // This transmute is used to cheat the lifetime restriction.
diff --git a/components/script/dom/element.rs b/components/script/dom/element.rs
index 18481db2c2d..ef240679388 100644
--- a/components/script/dom/element.rs
+++ b/components/script/dom/element.rs
@@ -156,6 +156,8 @@ impl Element {
 
 #[allow(unsafe_code)]
 pub trait RawLayoutElementHelpers {
+    unsafe fn get_attr_for_layout<'a>(&'a self, namespace: &Namespace, name: &Atom)
+                                      -> Option<&'a AttrValue>;
     unsafe fn get_attr_val_for_layout<'a>(&'a self, namespace: &Namespace, name: &Atom)
                                       -> Option<&'a str>;
     unsafe fn get_attr_vals_for_layout<'a>(&'a self, name: &Atom) -> Vec<&'a str>;
@@ -190,6 +192,13 @@ unsafe fn get_attr_for_layout(elem: &Element, namespace: &Namespace, name: &Atom
 #[allow(unsafe_code)]
 impl RawLayoutElementHelpers for Element {
     #[inline]
+    unsafe fn get_attr_for_layout<'a>(&'a self, namespace: &Namespace, name: &Atom)
+                                      -> Option<&'a AttrValue> {
+        get_attr_for_layout(self, namespace, name).map(|attr| {
+            (*attr.unsafe_get()).value_forever()
+        })
+    }
+
     unsafe fn get_attr_val_for_layout<'a>(&'a self, namespace: &Namespace, name: &Atom)
                                           -> Option<&'a str> {
         get_attr_for_layout(self, namespace, name).map(|attr| {