Avoid removing destination during moving paragrahs

Source/core/editing/CompositeEditCommand.h

Index: Source/core/editing/CompositeEditCommand.h
diff --git a/Source/core/editing/CompositeEditCommand.h b/Source/core/editing/CompositeEditCommand.h
index 7c48bd5d552f9769ff1ed2789747851431a084dc..3b32773954215a25d8fb050bb12a47d733245b54 100644
--- a/Source/core/editing/CompositeEditCommand.h
+++ b/Source/core/editing/CompositeEditCommand.h
@@ -124,10 +124,10 @@ protected:
     virtual void removeNode(PassRefPtr<Node>, ShouldAssumeContentIsAlwaysEditable = DoNotAssumeContentIsAlwaysEditable);
     HTMLElement* replaceElementWithSpanPreservingChildrenAndAttributes(PassRefPtr<HTMLElement>);
     void removeNodePreservingChildren(PassRefPtr<Node>, ShouldAssumeContentIsAlwaysEditable = DoNotAssumeContentIsAlwaysEditable);
-    void removeNodeAndPruneAncestors(PassRefPtr<Node>);
+    void removeNodeAndPruneAncestors(PassRefPtr<Node>, Node* excludeNode = 0);
     void moveRemainingSiblingsToNewParent(Node*, Node* pastLastNodeToMove, PassRefPtr<Element> prpNewParent);
     void updatePositionForNodeRemovalPreservingChildren(Position&, Node*);
-    void prune(PassRefPtr<Node>);
+    void prune(PassRefPtr<Node>, Node* excludeNode = 0);
     void replaceTextInNode(PassRefPtr<Text>, unsigned offset, unsigned count, const String& replacementText);
     Position replaceSelectedTextInNode(const String&);
     void replaceTextInNodePreservingMarkers(PassRefPtr<Text>, unsigned offset, unsigned count, const String& replacementText);