Move Layout Tree Construction code into Element::rebuildLayoutTree()

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

Index: third_party/WebKit/Source/core/dom/Node.cpp
diff --git a/third_party/WebKit/Source/core/dom/Node.cpp b/third_party/WebKit/Source/core/dom/Node.cpp
index e7766f1517764202878d2c1e2b76fa3f60166f4a..8e41e6bf16a618b141ddd33d93780aedb1c69769 100644
--- a/third_party/WebKit/Source/core/dom/Node.cpp
+++ b/third_party/WebKit/Source/core/dom/Node.cpp
@@ -697,6 +697,17 @@ void Node::markAncestorsWithChildNeedsStyleRecalc() {
   document().scheduleLayoutTreeUpdateIfNeeded();
 }
 
+void Node::markAncestorsWithChildNeedsReattachLayoutTree() {
+  for (ContainerNode* p = parentOrShadowHostNode();
+       p && !p->childNeedsReattachLayoutTree(); p = p->parentOrShadowHostNode())
+    p->setChildNeedsReattachLayoutTree();
+}
+
+void Node::setNeedsReattachLayoutTree() {
+  setFlag(NeedsReattachLayoutTree);
+  markAncestorsWithChildNeedsReattachLayoutTree();
+}
+
 void Node::setNeedsStyleRecalc(StyleChangeType changeType,
                                const StyleChangeReasonForTracing& reason) {
   DCHECK(changeType != NoStyleChange);
@@ -888,6 +899,7 @@ void Node::attachLayoutTree(const AttachContext&) {
           (layoutObject()->parent() || layoutObject()->isLayoutView())));
 
   clearNeedsStyleRecalc();
+  clearNeedsReattachLayoutTree();
 
   if (AXObjectCache* cache = document().axObjectCache())
     cache->updateCacheAfterNodeIsAttached(this);