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

Source/core/dom/Document.cpp

Index: Source/core/dom/Document.cpp
diff --git a/Source/core/dom/Document.cpp b/Source/core/dom/Document.cpp
index a8a92c88fd49e58fd81d6a096f9c22cfb38f67fc..3fd961e86d03e1820894c8b54787d47a83847328 100644
--- a/Source/core/dom/Document.cpp
+++ b/Source/core/dom/Document.cpp
@@ -3853,6 +3853,16 @@ void Document::didMergeTextNodes(Text& oldNode, unsigned offset)
     // FIXME: This should update markers for spelling and grammar checking.
 }
 
+void Document::didMoveNodeToNewDocument(const Node&)
+{
+    if (!m_ranges.isEmpty()) {
+        AttachedRangeSet ranges = m_ranges;
+        AttachedRangeSet::const_iterator end = ranges.end();
+        for (AttachedRangeSet::const_iterator it = ranges.begin(); it != end; ++it)
+            (*it)->updateOwnerDocumentIfNeeded();
+    }
+}
+
 void Document::didSplitTextNode(Text& oldNode)
 {
     if (!m_ranges.isEmpty()) {