To make NodeRenderingContext InsertionPoint-aware, we would like to make NodeRenderingContext clear. Especially, methods to take the first[last] renderer of Node should be extracted.
Created attachment 129680 [details] Patch
Comment on attachment 129680 [details] Patch could you make them inline?
Created attachment 130052 [details] Patch for landing
Comment on attachment 130052 [details] Patch for landing Clearing flags on attachment: 130052 Committed r109704: <http://trac.webkit.org/changeset/109704>
All reviewed patches have been landed. Closing bug.