Auto merge of #29848 - Loirooriol:sync, r=mrobinson

Backport several style changes from Gecko (4)

<!-- Please describe your changes on the following line: -->
This continues https://github.com/servo/servo/pull/29816.

---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `___` with appropriate data: -->
- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [ ] These changes fix #___ (GitHub issue number if applicable)

<!-- Either: -->
- [ ] There are tests for these changes OR
- [ ] These changes do not require tests because ___

<!-- Also, please make sure that "Allow edits from maintainers" checkbox is checked, so that we can help you if you get stuck somewhere along the way.-->

<!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. -->

1 files changed, 2 insertions, 1 deletions

diff --git a/components/script/dom/cssrule.rs b/components/script/dom/cssrule.rs
index 853a9c9b643..e23e6721301 100644
--- a/components/script/dom/cssrule.rs
+++ b/components/script/dom/cssrule.rs
@@ -105,7 +105,8 @@ impl CSSRule {
             },
             StyleCssRule::Page(_) => unreachable!(),
             StyleCssRule::Document(_) => unimplemented!(), // TODO
-            StyleCssRule::Layer(_) => unimplemented!(),    // TODO
+            StyleCssRule::LayerBlock(_) => unimplemented!(), // TODO
+            StyleCssRule::LayerStatement(_) => unimplemented!(), // TODO
             StyleCssRule::ScrollTimeline(_) => unimplemented!(), // TODO
         }
     }