servo: Merge #16609 - Implement unitless length quirk (from nox:quirks); r=Manishearth,emilio

The Gecko side doesn't propagate its quirks mode yet.

Source-Repo: https://github.com/servo/servo
Source-Revision: d8bcc0db1aad26e007b7e2bdeda3cea4953c0db0

servo/components/script/stylesheet_loader.rs

@@ -144,7 +144,8 @@ impl FetchResponseListener for StylesheetContext {
                                                             media.take().unwrap(),
                                                             shared_lock,
                                                             Some(&loader),
-                                                            win.css_error_reporter()));
+                                                            win.css_error_reporter(),
+                                                            document.quirks_mode()));
 
                         if link.is_alternate() {
                             sheet.set_disabled(true);