Make StyleChange parameter explicit in setNeedsStyleRecalc.

Source/core/css/RuleFeature.cpp

Index: Source/core/css/RuleFeature.cpp
diff --git a/Source/core/css/RuleFeature.cpp b/Source/core/css/RuleFeature.cpp
index 732640f7c3917b6e180764fca58aa76100c3967b..7cb58c1d79632a91cfb32781f394f2c01c444839 100644
--- a/Source/core/css/RuleFeature.cpp
+++ b/Source/core/css/RuleFeature.cpp
@@ -250,13 +250,13 @@ void RuleFeatureSet::clear()
 void RuleFeatureSet::scheduleStyleInvalidationForClassChange(const SpaceSplitString& changedClasses, Element* element)
 {
     if (computeInvalidationSetsForClassChange(changedClasses, element) && !m_targetedStyleRecalcEnabled)
-        element->setNeedsStyleRecalc();
+        element->setNeedsStyleRecalc(SubtreeStyleChange);
 }
 
 void RuleFeatureSet::scheduleStyleInvalidationForClassChange(const SpaceSplitString& oldClasses, const SpaceSplitString& newClasses, Element* element)
 {
     if (computeInvalidationSetsForClassChange(oldClasses, newClasses, element) && !m_targetedStyleRecalcEnabled)
-        element->setNeedsStyleRecalc();
+        element->setNeedsStyleRecalc(SubtreeStyleChange);
 }
 
 bool RuleFeatureSet::computeInvalidationSetsForClassChange(const SpaceSplitString& changedClasses, Element* element)