Only match style from element's TreeScope for normal rules.

Source/core/css/resolver/StyleResolver.h

Index: Source/core/css/resolver/StyleResolver.h
diff --git a/Source/core/css/resolver/StyleResolver.h b/Source/core/css/resolver/StyleResolver.h
index 25a3621f59131e9cc49e17334d717d51c0dc0eb4..f14d1de8805cd18668afd00f8744f6d682492f22 100644
--- a/Source/core/css/resolver/StyleResolver.h
+++ b/Source/core/css/resolver/StyleResolver.h
@@ -216,7 +216,7 @@ private:
     void matchRuleSet(ElementRuleCollector&, RuleSet*);
     void matchUARules(ElementRuleCollector&);
     void matchAuthorRules(Element*, ElementRuleCollector&, bool includeEmptyRules);
-    void matchAuthorRulesForShadowHost(Element*, ElementRuleCollector&, bool includeEmptyRules, WillBeHeapVector<RawPtrWillBeMember<ScopedStyleResolver>, 8>& resolvers, WillBeHeapVector<RawPtrWillBeMember<ScopedStyleResolver>, 8>& resolversInShadowTree);
+    void matchAuthorRulesForShadowHost(Element*, ElementRuleCollector&, bool includeEmptyRules, WillBeHeapVector<RawPtrWillBeMember<ScopedStyleResolver>, 8>& resolversInShadowTree);
     void matchAllRules(StyleResolverState&, ElementRuleCollector&, bool includeSMILProperties);
     void collectFeatures();
     void resetRuleFeatures();
@@ -227,8 +227,6 @@ private:
     bool applyAnimatedProperties(StyleResolverState&, const Element* animatingElement);
     void applyCallbackSelectors(StyleResolverState&);
 
-    void resolveScopedStyles(const Element*, WillBeHeapVector<RawPtrWillBeMember<ScopedStyleResolver>, 8>&);
-
     enum StyleApplicationPass {
         HighPriorityProperties,
         LowPriorityProperties