style: Use document quirks mode rather than sheet quirks mode for stylesheet invalidation.

In order to determine whether classes or ids are case insensitive we
need the document quirks mode. The sheet quirks mode almost always
matches, but may not match when sheets are added by privileged APIs.

Differential Revision: https://phabricator.services.mozilla.com/D95061

components/style/stylesheet_set.rs

@@ -450,7 +450,7 @@ macro_rules! sheet_set_methods {
             change_kind: RuleChangeKind,
         ) {
             if let Some(device) = device {
-                let quirks_mode = sheet.quirks_mode(guard);
+                let quirks_mode = device.quirks_mode();
                 self.invalidations.rule_changed(
                     sheet,
                     rule,