shadowAncestorNode is deprecated, and we want to convert it to shadowHost(). Now FrameSelection uses 2 shadowAncestorNode(), which are easy to convert to shadowHost.
Created attachment 183363 [details] Patch
Comment on attachment 183363 [details] Patch looks ok
Comment on attachment 183363 [details] Patch Clearing flags on attachment: 183363 Committed r140381: <http://trac.webkit.org/changeset/140381>
All reviewed patches have been landed. Closing bug.