script: Pass &mut JSContext to VirtualMethods::bind_to_tree (#43220)

Testing: No behaviour change, a successful build is enough.
Fixes: #42838 #43239

Signed-off-by: Gae24 <96017547+Gae24@users.noreply.github.com>

components/script/dom/html/htmlbodyelement.rs

@@ -5,6 +5,7 @@
 use dom_struct::dom_struct;
 use embedder_traits::{EmbedderMsg, LoadStatus};
 use html5ever::{LocalName, Prefix, local_name, ns};
+use js::context::JSContext;
 use js::rust::HandleObject;
 use style::attr::AttrValue;
 use style::color::AbsoluteColor;
@@ -119,9 +120,9 @@ impl VirtualMethods for HTMLBodyElement {
             .attribute_affects_presentational_hints(attr)
     }
 
-    fn bind_to_tree(&self, context: &BindContext, can_gc: CanGc) {
+    fn bind_to_tree(&self, cx: &mut JSContext, context: &BindContext) {
         if let Some(s) = self.super_type() {
-            s.bind_to_tree(context, can_gc);
+            s.bind_to_tree(cx, context);
         }
 
         if !context.tree_is_in_a_document_tree {