The geometry flipping that we do on Leopard causes spurious differences in the layer tree output: http://build.webkit.org/results/Leopard%20Intel%20Debug%20(Tests)/r59339%20(14316)/compositing/iframes/connect-compositing-iframe-delayed-pretty-diff.html We should just not dump the sublayer transform on the root layer.
Created attachment 55944 [details] Patch
Comment on attachment 55944 [details] Patch r=me
http://trac.webkit.org/changeset/59342