Use invalidation sets for :invalid/:valid/:required/:optional.

Source/core/html/HTMLFormControlElement.cpp

Index: Source/core/html/HTMLFormControlElement.cpp
diff --git a/Source/core/html/HTMLFormControlElement.cpp b/Source/core/html/HTMLFormControlElement.cpp
index 3526e51947edbc61ba26f5b8826b2fe9d2bd844c..2f06b0a87405b6efcea2b9d8ceacab58fef17c10 100644
--- a/Source/core/html/HTMLFormControlElement.cpp
+++ b/Source/core/html/HTMLFormControlElement.cpp
@@ -185,9 +185,8 @@ void HTMLFormControlElement::disabledAttributeChanged()
 void HTMLFormControlElement::requiredAttributeChanged()
 {
     setNeedsValidityCheck();
-    // Style recalculation is needed because style selectors may include
-    // :required and :optional pseudo-classes.
-    setNeedsStyleRecalc(SubtreeStyleChange, StyleChangeReasonForTracing::fromAttribute(requiredAttr));
+    pseudoStateChanged(CSSSelector::PseudoRequired);
+    pseudoStateChanged(CSSSelector::PseudoOptional);
 }
 
 bool HTMLFormControlElement::supportsAutofocus() const
@@ -518,7 +517,8 @@ void HTMLFormControlElement::setNeedsValidityCheck()
     if (willValidate() && newIsValid != m_isValid) {
         formOwnerSetNeedsValidityCheck();
         // Update style for pseudo classes such as :valid :invalid.
-        setNeedsStyleRecalc(SubtreeStyleChange, StyleChangeReasonForTracing::createWithExtraData(StyleChangeReason::PseudoClass, StyleChangeExtraData::Invalid));
+        pseudoStateChanged(CSSSelector::PseudoValid);
+        pseudoStateChanged(CSSSelector::PseudoInvalid);
     }
     m_isValid = newIsValid;