Auto merge of #22743 - ferjm:shadowdom, r=emilio

Partial ShadowDOM support

This is just an early WIP, not to take it very seriously yet.

- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [x] These changes fix #22719
- [x] There are tests for these changes

<!-- Reviewable:start -->
---
This change is [<img src="https://reviewable.io/review_button.svg" height="34" align="absmiddle" alt="Reviewable"/>](https://reviewable.io/reviews/servo/servo/22743)
<!-- Reviewable:end -->

1 files changed, 3 insertions, 3 deletions

diff --git a/components/script/dom/htmllegendelement.rs b/components/script/dom/htmllegendelement.rs
index b69a066d9a1..41cf7d3d8ff 100644
--- a/components/script/dom/htmllegendelement.rs
+++ b/components/script/dom/htmllegendelement.rs
@@ -12,7 +12,7 @@ use crate::dom::element::Element;
 use crate::dom::htmlelement::HTMLElement;
 use crate::dom::htmlfieldsetelement::HTMLFieldSetElement;
 use crate::dom::htmlformelement::{FormControl, HTMLFormElement};
-use crate::dom::node::{Node, UnbindContext};
+use crate::dom::node::{BindContext, Node, UnbindContext};
 use crate::dom::virtualmethods::VirtualMethods;
 use dom_struct::dom_struct;
 use html5ever::{LocalName, Prefix};
@@ -56,9 +56,9 @@ impl VirtualMethods for HTMLLegendElement {
         Some(self.upcast::<HTMLElement>() as &dyn VirtualMethods)
     }
 
-    fn bind_to_tree(&self, tree_in_doc: bool) {
+    fn bind_to_tree(&self, context: &BindContext) {
         if let Some(ref s) = self.super_type() {
-            s.bind_to_tree(tree_in_doc);
+            s.bind_to_tree(context);
         }
 
         self.upcast::<Element>()