Call insertedInto or removedFrom before childrenChanged

Source/core/dom/ContainerNode.h

Index: Source/core/dom/ContainerNode.h
diff --git a/Source/core/dom/ContainerNode.h b/Source/core/dom/ContainerNode.h
index 643e2d5e8a2028d2b9e08e534d7a9c3c6f546d16..660a9f865d62b8b4d8e1b9b8ffaa386e097c3668 100644
--- a/Source/core/dom/ContainerNode.h
+++ b/Source/core/dom/ContainerNode.h
@@ -156,13 +156,15 @@ public:
 
     // Notifies the node that it's list of children have changed (either by adding or removing child nodes), or a child
     // node that is of the type CDATA_SECTION_NODE, TEXT_NODE or COMMENT_NODE has changed its value.
+    // FIXME: Replace the bool for createdByParser with the InsertionSourceType.
     virtual void childrenChanged(bool createdByParser = false, Node* beforeChange = 0, Node* afterChange = 0, int childCountDelta = 0);
 
     void disconnectDescendantFrames();
 
     virtual void trace(Visitor*) OVERRIDE;
 
-    void notifyNodeInserted(Node&);
+    enum InsertionSourceType { InsertedByDOM, InsertedByParser };
+    void notifyNodeInserted(Node&, InsertionSourceType = InsertedByDOM);
     void notifyNodeRemoved(Node&);
 
 protected: