I believe it is a good idea to move test cases which require LayoutTestController's layerTreeAsText from the Skipped list to test expectations since it requires support more accelerated compositing which is missing.
Created attachment 138500 [details] Patch
Created attachment 138505 [details] Patch Add "Unreviewed" line.
Comment on attachment 138505 [details] Patch Clearing flags on attachment: 138505 Committed r115018: <http://trac.webkit.org/changeset/115018>
All reviewed patches have been landed. Closing bug.