1 files changed, 19 insertions, 9 deletions
diff --git a/components/script/layout_dom/element.rs b/components/script/layout_dom/element.rs
index 8d1c6713849..3e71e1eb773 100644
--- a/components/script/layout_dom/element.rs
+++ b/components/script/layout_dom/element.rs
@@ -414,15 +414,16 @@ impl<'dom> style::dom::TElement for ServoLayoutElement<'dom> {
         self.element.get_selector_flags().contains(flags)
     }
 
-    fn relative_selector_search_direction(&self) -> Option<ElementSelectorFlags> {
-        let flags = self.element.get_selector_flags().intersection(
-            ElementSelectorFlags::RELATIVE_SELECTOR_SEARCH_DIRECTION_ANCESTOR_SIBLING,
-        );
-        if flags.is_empty() {
-            None
-        } else {
-            Some(flags)
-        }
+    fn relative_selector_search_direction(&self) -> ElementSelectorFlags {
+        self.element
+            .get_selector_flags()
+            .intersection(ElementSelectorFlags::RELATIVE_SELECTOR_SEARCH_DIRECTION_ANCESTOR_SIBLING)
+    }
+
+    fn each_custom_state<F>(&self, _callback: F)
+    where
+        F: FnMut(&AtomIdent),
+    {
     }
 }
 
@@ -551,6 +552,7 @@ impl<'dom> ::selectors::Element for ServoLayoutElement<'dom> {
             NonTSPseudoClass::Link | NonTSPseudoClass::AnyLink => self.is_link(),
             NonTSPseudoClass::Visited => false,
 
+            NonTSPseudoClass::CustomState(ref state) => self.has_custom_state(&state.0),
             NonTSPseudoClass::Lang(ref lang) => self.match_element_lang(None, lang),
 
             NonTSPseudoClass::ServoNonZeroBorder => !matches!(
@@ -651,6 +653,10 @@ impl<'dom> ::selectors::Element for ServoLayoutElement<'dom> {
         each_relevant_element_hash(*self, |hash| filter.insert_hash(hash & BLOOM_HASH_MASK));
         true
     }
+
+    fn has_custom_state(&self, _name: &AtomIdent) -> bool {
+        false
+    }
 }
 
 /// A wrapper around elements that ensures layout can only
@@ -893,4 +899,8 @@ impl<'dom> ::selectors::Element for ServoThreadSafeLayoutElement<'dom> {
         });
         true
     }
+
+    fn has_custom_state(&self, _name: &AtomIdent) -> bool {
+        false
+    }
 }