Track reasons for |Node::SetNeedsStyleRecalc|

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 4972a38a1bd7908f3be7cff35fbaaf736b078e9a..6029f3fe1e814339a8d896db5eb0e1bf69de265b 100644
--- a/Source/core/html/HTMLFormControlElement.cpp
+++ b/Source/core/html/HTMLFormControlElement.cpp
@@ -151,7 +151,7 @@ void HTMLFormControlElement::parseAttribute(const QualifiedName& name, const Ato
         m_isReadOnly = !value.isNull();
         if (wasReadOnly != m_isReadOnly) {
             setNeedsWillValidateCheck();
-            setNeedsStyleRecalc(SubtreeStyleChange);
+            setNeedsStyleRecalc(SubtreeStyleChange, StyleChangeReasonForTracing::fromAttribute(name));
             if (renderer() && renderer()->style()->hasAppearance())
                 RenderTheme::theme().stateChanged(renderer(), ReadOnlyControlState);
         }
@@ -187,7 +187,7 @@ void HTMLFormControlElement::requiredAttributeChanged()
     setNeedsValidityCheck();
     // Style recalculation is needed because style selectors may include
     // :required and :optional pseudo-classes.
-    setNeedsStyleRecalc(SubtreeStyleChange);
+    setNeedsStyleRecalc(SubtreeStyleChange, StyleChangeReasonForTracing::fromAttribute(requiredAttr));
 }
 
 bool HTMLFormControlElement::supportsAutofocus() const
@@ -206,7 +206,7 @@ void HTMLFormControlElement::setAutofilled(bool autofilled)
         return;
 
     m_isAutofilled = autofilled;
-    setNeedsStyleRecalc(SubtreeStyleChange);
+    setNeedsStyleRecalc(SubtreeStyleChange, StyleChangeReasonForTracing::create(StyleChangeReason::ControlValue));
 }
 
 static bool shouldAutofocusOnAttach(const HTMLFormControlElement* element)
@@ -402,7 +402,7 @@ void HTMLFormControlElement::setNeedsWillValidateCheck()
     m_willValidateInitialized = true;
     m_willValidate = newWillValidate;
     setNeedsValidityCheck();
-    setNeedsStyleRecalc(SubtreeStyleChange);
+    setNeedsStyleRecalc(SubtreeStyleChange, StyleChangeReasonForTracing::create(StyleChangeReason::Validate));
     if (!m_willValidate)
         hideVisibleValidationMessage();
 }
@@ -493,7 +493,7 @@ void HTMLFormControlElement::setNeedsValidityCheck()
     bool newIsValid = valid();
     if (willValidate() && newIsValid != m_isValid) {
         // Update style for pseudo classes such as :valid :invalid.
-        setNeedsStyleRecalc(SubtreeStyleChange);
+        setNeedsStyleRecalc(SubtreeStyleChange, StyleChangeReasonForTracing::createWithExtraData(StyleChangeReason::PseudoClass, StyleChangeExtraData::Invalid));
     }
     m_isValid = newIsValid;