Update owner document of Range objects if start/end boundary points in different document

Source/core/dom/Document.h

Index: Source/core/dom/Document.h
diff --git a/Source/core/dom/Document.h b/Source/core/dom/Document.h
index 7b6beb53c262d20b6857c351f31247dafba9f83e..480e7aad7e23089f6a7b315aa5ca0fe7d7c9c260 100644
--- a/Source/core/dom/Document.h
+++ b/Source/core/dom/Document.h
@@ -688,6 +688,7 @@ public:
     void didInsertText(Node*, unsigned offset, unsigned length);
     void didRemoveText(Node*, unsigned offset, unsigned length);
     void didMergeTextNodes(Text& oldNode, unsigned offset);
+    void didMoveNodeToNewDocument(const Node&);

[Yuta Kitamura, 2014/06/18 07:48:27]

1. There should be some comment saying that:
- This function is called for the document which the node
  previously belonged to.
- This function is called after the node is moved to a new
  document.

2. This function should not be declared at this line;
   functions at lines 688-690 and 692 are for mutations of
   Text nodes and not for node tree mutations. You probably
   should move this function to somewhere near lines 681-685
   and also should follow the naming convention of the
   functions there.

3. "New" -> "Another", maybe? The target document may not
   be necessarily new.

[yosin_UTC9, 2014/06/18 08:55:40]

I renamed the function to |updateRangesAfterNodeMovedToAnotherDocument|.

     void didSplitTextNode(Text& oldNode);
 
     void clearDOMWindow() { m_domWindow = nullptr; }