Merge 138131

Source/WebCore/dom/Element.h

Index: Source/WebCore/dom/Element.h
===================================================================
--- Source/WebCore/dom/Element.h	(revision 139387)
+++ Source/WebCore/dom/Element.h	(working copy)
@@ -826,6 +826,25 @@
     return isElementNode() && toElement(this)->hasClass();
 }
 
+inline Node::InsertionNotificationRequest Node::insertedInto(ContainerNode* insertionPoint)
+{
+    ASSERT(insertionPoint->inDocument() || isContainerNode());
+    if (insertionPoint->inDocument())
+        setFlag(InDocumentFlag);
+    if (parentOrHostNode()->isInShadowTree())
+        setFlag(IsInShadowTreeFlag);
+    return InsertionDone;
+}
+
+inline void Node::removedFrom(ContainerNode* insertionPoint)
+{
+    ASSERT(insertionPoint->inDocument() || isContainerNode());
+    if (insertionPoint->inDocument())
+        clearFlag(InDocumentFlag);
+    if (isInShadowTree() && !treeScope()->rootNode()->isShadowRoot())
+        clearFlag(IsInShadowTreeFlag);
+}
+
 inline bool isShadowHost(const Node* node)
 {
     return node && node->isElementNode() && toElement(node)->shadow();