Auto merge of #12340 - Scorpil:document_progress_handler_runnable_name, r=KiChjang

Add name method for Runnable trait in DocumentProgressHandler

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- [X] These changes fix #12335

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components/script/dom/document.rs

@@ -2869,6 +2869,8 @@ impl DocumentProgressHandler {
 }
 
 impl Runnable for DocumentProgressHandler {
+    fn name(&self) -> &'static str { "DocumentProgressHandler" }
+
     fn handler(self: Box<DocumentProgressHandler>) {
         let document = self.addr.root();
         let window = document.window();