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, 3 deletions

diff --git a/components/script/dom/htmlheadelement.rs b/components/script/dom/htmlheadelement.rs
index 3b0f40d2f22..54a2b49b59b 100644
--- a/components/script/dom/htmlheadelement.rs
+++ b/components/script/dom/htmlheadelement.rs
@@ -14,7 +14,7 @@ use crate::dom::document::{determine_policy_for_token, Document};
 use crate::dom::element::Element;
 use crate::dom::htmlelement::HTMLElement;
 use crate::dom::htmlmetaelement::HTMLMetaElement;
-use crate::dom::node::{document_from_node, BindContext, Node, ShadowIncluding};
+use crate::dom::node::{BindContext, Node, NodeTraits, ShadowIncluding};
 use crate::dom::userscripts::load_script;
 use crate::dom::virtualmethods::VirtualMethods;
 use crate::script_runtime::CanGc;
@@ -56,7 +56,7 @@ impl HTMLHeadElement {
 
     /// <https://html.spec.whatwg.org/multipage/#meta-referrer>
     pub fn set_document_referrer(&self) {
-        let doc = document_from_node(self);
+        let doc = self.owner_document();
 
         if doc.GetHead().as_deref() != Some(self) {
             return;
@@ -87,7 +87,7 @@ impl HTMLHeadElement {
 
     /// <https://html.spec.whatwg.org/multipage/#attr-meta-http-equiv-content-security-policy>
     pub fn set_content_security_policy(&self) {
-        let doc = document_from_node(self);
+        let doc = self.owner_document();
 
         if doc.GetHead().as_deref() != Some(self) {
             return;