Remove HeapGCValue

It could be used to have mutable JSVal fields without GC barriers.
With the removal of that trait, MutHeap and MutNullableHeap can respectively
be replaced by MutJS and MutNullableJS.

1 files changed, 3 insertions, 4 deletions

diff --git a/components/script/dom/attr.rs b/components/script/dom/attr.rs
index 8b9587c9151..c44cfd4367d 100644
--- a/components/script/dom/attr.rs
+++ b/components/script/dom/attr.rs
@@ -6,8 +6,7 @@ use devtools_traits::AttrInfo;
 use dom::bindings::cell::DOMRefCell;
 use dom::bindings::codegen::Bindings::AttrBinding::{self, AttrMethods};
 use dom::bindings::inheritance::Castable;
-use dom::bindings::js::{JS, MutNullableHeap};
-use dom::bindings::js::{LayoutJS, Root, RootedReference};
+use dom::bindings::js::{LayoutJS, MutNullableJS, Root, RootedReference};
 use dom::bindings::reflector::{Reflector, reflect_dom_object};
 use dom::bindings::str::DOMString;
 use dom::element::{AttributeMutation, Element};
@@ -28,7 +27,7 @@ pub struct Attr {
     value: DOMRefCell<AttrValue>,
 
     /// the element that owns this attribute.
-    owner: MutNullableHeap<JS<Element>>,
+    owner: MutNullableJS<Element>,
 }
 
 impl Attr {
@@ -48,7 +47,7 @@ impl Attr {
                 prefix: prefix,
             },
             value: DOMRefCell::new(value),
-            owner: MutNullableHeap::new(owner),
+            owner: MutNullableJS::new(owner),
         }
     }