Recalc list items for <select> before updating style for the select.

Source/core/dom/Element.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Peter Kelly (pmk@post.com)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  *           (C) 2007 David Smith (catfish.man@gmail.com)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012, 2013 Apple Inc. All rights reserved.
  *           (C) 2007 Eric Seidel (eric@webkit.org)
  *
  * This library is free software; you can redistribute it and/or
@@ skipping 1736 matching lines @@
     return hasRareData() ? elementRareData()->shadow() : nullptr;
 }
 
 ElementShadow& Element::ensureShadow()
 {
     return ensureElementRareData().ensureShadow();
 }
 
 void Element::pseudoStateChanged(CSSSelector::PseudoType pseudo)
 {
+    if (document().inStyleRecalc())

[ojan, 2015/06/19 01:05:02]

Add a comment explaining why we do this?

+        return;
+
     StyleResolver* styleResolver = document().styleResolver();
-
     if (inActiveDocument() && styleResolver && styleChangeType() < SubtreeStyleChange)
         document().styleEngine().pseudoStateChangedForElement(pseudo, *this);
 }
 
 void Element::setAnimationStyleChange(bool animationStyleChange)
 {
     if (animationStyleChange && document().inStyleRecalc())
         return;
     if (!hasRareData())
         return;
@@ skipping 1655 matching lines @@
 {
 #if ENABLE(OILPAN)
     if (hasRareData())
         visitor->trace(elementRareData());
     visitor->trace(m_elementData);
 #endif
     ContainerNode::trace(visitor);
 }
 
 } // namespace blink