Make all setNeedsReattachLayoutTree happen from updateStyle.

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

Index: third_party/WebKit/Source/core/dom/Element.cpp
diff --git a/third_party/WebKit/Source/core/dom/Element.cpp b/third_party/WebKit/Source/core/dom/Element.cpp
index 8043437642a66ddd4e39c358b0e55fdb7fd1a707..d3cf4d9f7d1cca40f54beb94dbedf1c92e07ceb0 100644
--- a/third_party/WebKit/Source/core/dom/Element.cpp
+++ b/third_party/WebKit/Source/core/dom/Element.cpp
@@ -1882,8 +1882,13 @@ void Element::recalcStyle(StyleRecalcChange change) {
           elementAnimations->setAnimationStyleChange(false);
       }
     }
-    if (parentComputedStyle())
+    if (parentComputedStyle()) {
       change = recalcOwnStyle(change);
+    } else if (needsAttach()) {
+      setNeedsReattachLayoutTree();
+      change = Reattach;
+    }
+
     // Needed because the rebuildLayoutTree code needs to see what the
     // styleChangeType() was on reattach roots. See Node::reattachLayoutTree()
     // for an example.