Schedule a type selector invalidation set for RuleSet invalidations.

third_party/WebKit/Source/core/dom/StyleEngine.cpp

Index: third_party/WebKit/Source/core/dom/StyleEngine.cpp
diff --git a/third_party/WebKit/Source/core/dom/StyleEngine.cpp b/third_party/WebKit/Source/core/dom/StyleEngine.cpp
index 19826f40af5ae0c3d3799d4cb5d02e72990ddc6e..75ef6439682fd73f348554b875df3b81aabd9ae2 100644
--- a/third_party/WebKit/Source/core/dom/StyleEngine.cpp
+++ b/third_party/WebKit/Source/core/dom/StyleEngine.cpp
@@ -832,15 +832,21 @@ void StyleEngine::scheduleRuleSetInvalidationsForElement(
     for (const Attribute& attribute : element.attributes())
       ruleSet->features().collectInvalidationSetsForAttribute(
           invalidationLists, element, attribute.name());
-    if (ruleSet->tagRules(element.localNameForSelectorMatching()))
-      element.setNeedsStyleRecalc(LocalStyleChange,
-                                  StyleChangeReasonForTracing::create(
-                                      StyleChangeReason::StyleSheetChange));
   }
   m_styleInvalidator.scheduleInvalidationSetsForNode(invalidationLists,
                                                      element);
 }
 
+void StyleEngine::scheduleTypeRuleSetInvalidations(
+    ContainerNode& node,
+    const HeapHashSet<Member<RuleSet>>& ruleSets) {
+  InvalidationLists invalidationLists;
+  for (const auto& ruleSet : ruleSets)
+    ruleSet->features().collectTypeRuleInvalidationSet(invalidationLists, node);
+  DCHECK(invalidationLists.siblings.isEmpty());
+  m_styleInvalidator.scheduleInvalidationSetsForNode(invalidationLists, node);
+}
+
 void StyleEngine::invalidateSlottedElements(HTMLSlotElement& slot) {
   for (auto& node : slot.getDistributedNodes()) {
     if (node->isElementNode())
@@ -863,6 +869,8 @@ void StyleEngine::scheduleInvalidationsForRuleSets(
   TRACE_EVENT0("blink,blink_style",
                "StyleEngine::scheduleInvalidationsForRuleSets");
 
+  scheduleTypeRuleSetInvalidations(treeScope.rootNode(), ruleSets);
+
   bool invalidateSlotted = false;
   if (treeScope.rootNode().isShadowRoot()) {
     Element& host = toShadowRoot(treeScope.rootNode()).host();