style: Make XBL / Shadow DOM use something more light-weight than a Stylist.

It's just a struct aggregating stylesheets + CascadeData, with a quirks_mode
parameter because XBL sucks so bad.

Bug: 1436059
Reviewed-by: xidorn
MozReview-Commit-ID: 7q99tSNXo0K

1 files changed, 2 insertions, 3 deletions

diff --git a/components/style/invalidation/element/state_and_attributes.rs b/components/style/invalidation/element/state_and_attributes.rs
index a2dc18fb28c..f272d22a71d 100644
--- a/components/style/invalidation/element/state_and_attributes.rs
+++ b/components/style/invalidation/element/state_and_attributes.rs
@@ -6,7 +6,6 @@
 //! changes.
 
 use Atom;
-use atomic_refcell::AtomicRef;
 use context::{QuirksMode, SharedStyleContext};
 use data::ElementData;
 use dom::TElement;
@@ -57,7 +56,7 @@ where
 /// changes.
 pub struct StateAndAttrInvalidationProcessor<'a, 'b: 'a, E: TElement> {
     shared_context: &'a SharedStyleContext<'b>,
-    shadow_rule_datas: &'a [(AtomicRef<'b, CascadeData>, QuirksMode)],
+    shadow_rule_datas: &'a [(&'b CascadeData, QuirksMode)],
     cut_off_inheritance: bool,
     element: E,
     data: &'a mut ElementData,
@@ -68,7 +67,7 @@ impl<'a, 'b: 'a, E: TElement> StateAndAttrInvalidationProcessor<'a, 'b, E> {
     /// Creates a new StateAndAttrInvalidationProcessor.
     pub fn new(
         shared_context: &'a SharedStyleContext<'b>,
-        shadow_rule_datas: &'a [(AtomicRef<'b, CascadeData>, QuirksMode)],
+        shadow_rule_datas: &'a [(&'b CascadeData, QuirksMode)],
         cut_off_inheritance: bool,
         element: E,
         data: &'a mut ElementData,