<rdar://problem/5084400> -[DOMRange lineBoxRects] returns an empty array when the DOM nodes have just been created

        Do a updateLayoutIgnorePendingStylesheets before asking the Node or Range for it's box rects.

        * bindings/objc/DOM.mm:
        (-[DOMNode boundingBox]):
        (-[DOMNode lineBoxRects]):
        (-[DOMRange boundingBox]):
        (-[DOMRange lineBoxRects]):



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@21635 268f45cc-cd09-0410-ab3c-d52691b4dbfc