The test added by http://trac.webkit.org/changeset/100036 is failing on Mac. Unfortunately the revision didn't add png result so you can see the failure only locally. I'll add the failing png result shortly so that other folks see what the failure looks like.
Committed the failing expectation in http://trac.webkit.org/changeset/101182.
My apologies for any problems this has caused. I'm still getting up to speed on which layout tests are run under which circumstances, and will address this issue as soon as I get back into the office and can get a mac build going. It's not immediately obvious how this could be a platform-specific failure, but I imagine I can sort it out in short order.
I can't edit webkit bugs, btw, but feel free to assign this to me.
@Ryosuke: I've finally gotten back to looking at this. I'm trying to reproduce the failure, but on my Mac laptop (Lion) I'm seeing the correct behavior (two green boxes).
I apologize for still being a little fuzzy on the details of the platform pixel tests -- is there a particular place I should be looking to see where this is failing (and on what particular OS version)?
(In reply to comment #3)
> @Ryosuke: I've finally gotten back to looking at this. I'm trying to reproduce the failure, but on my Mac laptop (Lion) I'm seeing the correct behavior (two green boxes).
It's possible that the failure only occurs on Snow Leopard or it has been fixed.