Auto merge of #21614 - pyfisch:layout_traits-fmt, r=nox

Rustfmt layout_traits crate

Part of #21373. This is a small PR, just one function is formatted as the layout_traits crate contains only this one trait.

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components/layout_traits/lib.rs

@@ -36,7 +36,8 @@ use std::sync::mpsc::{Receiver, Sender};
 // Here to remove the compositor -> layout dependency
 pub trait LayoutThreadFactory {
     type Message;
-    fn create(id: PipelineId,
+    fn create(
+        id: PipelineId,
         top_level_browsing_context_id: TopLevelBrowsingContextId,
         url: ServoUrl,
         is_iframe: bool,
@@ -52,5 +53,6 @@ pub trait LayoutThreadFactory {
         webrender_api_sender: webrender_api::RenderApiSender,
         webrender_document: webrender_api::DocumentId,
         layout_threads: usize,
-              paint_time_metrics: PaintTimeMetrics);
+        paint_time_metrics: PaintTimeMetrics,
+    );
 }