Make all setNeedsReattachLayoutTree happen from updateStyle.

third_party/WebKit/Source/core/dom/ContainerNode.cpp

Index: third_party/WebKit/Source/core/dom/ContainerNode.cpp
diff --git a/third_party/WebKit/Source/core/dom/ContainerNode.cpp b/third_party/WebKit/Source/core/dom/ContainerNode.cpp
index 2dbafa110bc5bb1dbcb9f8e3ddc839e3fe922204..46aacf5a09266351f9e34286c481c4bf70ec6f1c 100644
--- a/third_party/WebKit/Source/core/dom/ContainerNode.cpp
+++ b/third_party/WebKit/Source/core/dom/ContainerNode.cpp
@@ -788,7 +788,6 @@ void ContainerNode::detachLayoutTree(const AttachContext& context) {
     child->detachLayoutTree(childrenContext);
 
   setChildNeedsStyleRecalc();
-  setChildNeedsReattachLayoutTree();
   Node::detachLayoutTree(context);
 }
 
@@ -801,10 +800,6 @@ void ContainerNode::childrenChanged(const ChildrenChange& change) {
       setChildNeedsStyleRecalc();
       markAncestorsWithChildNeedsStyleRecalc();
     }
-    if (!childNeedsReattachLayoutTree()) {
-      setChildNeedsReattachLayoutTree();
-      markAncestorsWithChildNeedsReattachLayoutTree();
-    }
   }
 }