script: Expose node helpers as `NodeTraits` and give more descriptive names (#34832)

This puts a few commonly used `Node` helpers into a trait (`NodeTraits`)
and gives them more descriptive names and documentation. The renames:

- `document_from_node` -> `NodeTraits::owner_document`
- `window_from_node` -> `NodeTraits::owner_window`
- `stylesheets_owner_from_node<T:` -> `NodeTraits::stylesheet_list_owner`
- `containing_shadow_root` -> `NodeTraits::containing_shadow_root`

Signed-off-by: Martin Robinson <mrobinson@igalia.com>

1 files changed, 3 insertions, 2 deletions

diff --git a/components/script/dom/htmlcollection.rs b/components/script/dom/htmlcollection.rs
index 5e2c1130b21..6294c9b93d9 100644
--- a/components/script/dom/htmlcollection.rs
+++ b/components/script/dom/htmlcollection.rs
@@ -18,7 +18,7 @@ use crate::dom::bindings::str::DOMString;
 use crate::dom::bindings::trace::JSTraceable;
 use crate::dom::bindings::xmlname::namespace_from_domstring;
 use crate::dom::element::Element;
-use crate::dom::node::{document_from_node, Node};
+use crate::dom::node::{Node, NodeTraits};
 use crate::dom::window::Window;
 use crate::script_runtime::CanGc;
 
@@ -282,7 +282,8 @@ impl HTMLCollection {
         }
         impl CollectionFilter for ClassNameFilter {
             fn filter(&self, elem: &Element, _root: &Node) -> bool {
-                let case_sensitivity = document_from_node(elem)
+                let case_sensitivity = elem
+                    .owner_document()
                     .quirks_mode()
                     .classes_and_ids_case_sensitivity();