Call Element::rebuildLayoutTree from Document::updateStyle directly

third_party/WebKit/Source/core/dom/Element.h

Index: third_party/WebKit/Source/core/dom/Element.h
diff --git a/third_party/WebKit/Source/core/dom/Element.h b/third_party/WebKit/Source/core/dom/Element.h
index ae22bda3cf54494f3a71e79464e4a1ae51b5a17f..a0b785ed74f29f70a35e43bf68e8b3816a98cc63 100644
--- a/third_party/WebKit/Source/core/dom/Element.h
+++ b/third_party/WebKit/Source/core/dom/Element.h
@@ -400,7 +400,7 @@ class CORE_EXPORT Element : public ContainerNode {
   virtual LayoutObject* createLayoutObject(const ComputedStyle&);
   virtual bool layoutObjectIsNeeded(const ComputedStyle&);
   void recalcStyle(StyleRecalcChange);
-  StyleRecalcChange rebuildLayoutTree();
+  void rebuildLayoutTree();
   void pseudoStateChanged(CSSSelector::PseudoType);
   void setAnimationStyleChange(bool);
   void clearAnimationStyleChange();
@@ -823,6 +823,8 @@ class CORE_EXPORT Element : public ContainerNode {
   PassRefPtr<ComputedStyle> propagateInheritedProperties(StyleRecalcChange);
 
   StyleRecalcChange recalcOwnStyle(StyleRecalcChange);
+  void reattachPseudoElementLayoutTree(PseudoId);
+  void rebuildShadowRootLayoutTree();
   inline void checkForEmptyStyleChange();
 
   void updatePseudoElement(PseudoId, StyleRecalcChange);