Support tag names as invalidation set features.

Source/core/css/invalidation/StyleInvalidator.cpp

Index: Source/core/css/invalidation/StyleInvalidator.cpp
diff --git a/Source/core/css/invalidation/StyleInvalidator.cpp b/Source/core/css/invalidation/StyleInvalidator.cpp
index f7654f15b847ad3069ccafce94d5db7862f87901..c9f212838bff523a53118ea2c94b401fe6db086d 100644
--- a/Source/core/css/invalidation/StyleInvalidator.cpp
+++ b/Source/core/css/invalidation/StyleInvalidator.cpp
@@ -60,6 +60,7 @@ void StyleInvalidator::RecursionData::pushInvalidationSet(const DescendantInvali
     invalidationSet.getClasses(m_invalidationClasses);
     invalidationSet.getAttributes(m_invalidationAttributes);
     invalidationSet.getIds(m_invalidationIds);
+    invalidationSet.getTagNames(m_invalidationTagNames);
     m_invalidateCustomPseudo = invalidationSet.customPseudoInvalid();
     m_foundInvalidationSet = true;
 }
@@ -84,6 +85,8 @@ bool StyleInvalidator::RecursionData::matchesCurrentInvalidationSets(Element& el
         if (m_invalidationIds.contains(id))
             return true;
     }
+    if (!m_invalidationTagNames.isEmpty() && m_invalidationTagNames.contains(element.tagQName().localName()))
+        return true;
     if (m_invalidateCustomPseudo && element.shadowPseudoId() != nullAtom)
         return true;