Track reasons for |Node::SetNeedsStyleRecalc|

Source/core/html/HTMLSelectElement.cpp

Index: Source/core/html/HTMLSelectElement.cpp
diff --git a/Source/core/html/HTMLSelectElement.cpp b/Source/core/html/HTMLSelectElement.cpp
index 906812120075f2065568cbede9200c54123b4cd9..9f014ed3f48465e0b859b73af1cb4c5c6e7b5406 100644
--- a/Source/core/html/HTMLSelectElement.cpp
+++ b/Source/core/html/HTMLSelectElement.cpp
@@ -647,7 +647,7 @@ void HTMLSelectElement::setActiveSelectionEndIndex(int index)
     if (index == m_activeSelectionEndIndex)
         return;
     m_activeSelectionEndIndex = index;
-    setNeedsStyleRecalc(SubtreeStyleChange);
+    setNeedsStyleRecalc(StyleRecalcDueToControl, SubtreeStyleChange);
 }
 
 void HTMLSelectElement::updateListBoxSelection(bool deselectOtherOptions)
@@ -771,7 +771,7 @@ void HTMLSelectElement::setRecalcListItems()
     // Manual selection anchor is reset when manipulating the select programmatically.
     m_activeSelectionAnchorIndex = -1;
     setOptionsChangedOnRenderer();
-    setNeedsStyleRecalc(SubtreeStyleChange);
+    setNeedsStyleRecalc(StyleRecalcDueToControlValue, SubtreeStyleChange);
     if (!inDocument()) {
         if (HTMLOptionsCollection* collection = cachedCollection<HTMLOptionsCollection>(SelectOptions))
             collection->invalidateCache();
@@ -1153,7 +1153,7 @@ void HTMLSelectElement::resetImpl()
         firstOption->setSelectedState(true);
 
     setOptionsChangedOnRenderer();
-    setNeedsStyleRecalc(SubtreeStyleChange);
+    setNeedsStyleRecalc(StyleRecalcDueToControlValue, SubtreeStyleChange);
     setNeedsValidityCheck();
 }