Auto merge of #18968 - mbrubeck:try, r=emilio

Use try syntax for Option where appropriate

- [x] `./mach build -d` does not report any errors
- [x] `./mach test-tidy` does not report any errors
- [x] These changes do not require tests because they are refactoring only

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components/script/dom/htmliframeelement.rs

@@ -588,17 +588,13 @@ impl HTMLIFrameElementMethods for HTMLIFrameElement {
     // https://html.spec.whatwg.org/multipage/#concept-bcc-content-document
     fn GetContentDocument(&self) -> Option<DomRoot<Document>> {
         // Step 1.
-        let pipeline_id = match self.pipeline_id.get() {
-            None => return None,
-            Some(pipeline_id) => pipeline_id,
-        };
+        let pipeline_id = self.pipeline_id.get()?;
+
         // Step 2-3.
         // Note that this lookup will fail if the document is dissimilar-origin,
         // so we should return None in that case.
-        let document = match ScriptThread::find_document(pipeline_id) {
-            None => return None,
-            Some(document) => document,
-        };
+        let document = ScriptThread::find_document(pipeline_id)?;
+
         // Step 4.
         let current = GlobalScope::current().expect("No current global object").as_window().Document();
         if !current.origin().same_origin_domain(document.origin()) {