Use style invalidation for more pseudo classes.

Source/core/html/HTMLOptGroupElement.cpp

Index: Source/core/html/HTMLOptGroupElement.cpp
diff --git a/Source/core/html/HTMLOptGroupElement.cpp b/Source/core/html/HTMLOptGroupElement.cpp
index 4aed5bce86036ba1454877af90a3007cf8f81141..b980d732bd56f4092e80e6d8018ef3d0c0c855f7 100644
--- a/Source/core/html/HTMLOptGroupElement.cpp
+++ b/Source/core/html/HTMLOptGroupElement.cpp
@@ -69,10 +69,12 @@ void HTMLOptGroupElement::parseAttribute(const QualifiedName& name, const Atomic
     HTMLElement::parseAttribute(name, value);
     recalcSelectOptions();
 
-    if (name == disabledAttr)
-        didAffectSelector(AffectedSelectorDisabled | AffectedSelectorEnabled);
-    else if (name == labelAttr)
+    if (name == disabledAttr) {
+        pseudoStateChanged(CSSSelector::PseudoDisabled);
+        pseudoStateChanged(CSSSelector::PseudoEnabled);
+    } else if (name == labelAttr) {
         updateGroupLabel();
+    }
 }
 
 void HTMLOptGroupElement::recalcSelectOptions()