It's not possible to build WebKitGTK+ on Windows, this code is all dead. Not looking likely that this will change anytime soon. It's slightly broken currently (the UA includes two semicolons in a row). This code can always be restored later if adding Windows support.
Also DirectFB is silly. And we have to claim to be X11 no matter what, as websites expect it. The only time we should risk not including X11 is when running on a Mac, and I'm not even sure about that.
Created attachment 289948 [details]
Comment on attachment 289948 [details]
Clearing flags on attachment: 289948
Committed r206513: <http://trac.webkit.org/changeset/206513>
All reviewed patches have been landed. Closing bug.