Even when universal access from file URLs is not allowed with a preference, we may want to give it to specific safe files. The logic would be highly client specific, so it's best to have a callback. <rdar://problem/11024330>
Created attachment 143378 [details] proposed patch
Comment on attachment 143378 [details] proposed patch Document.cpp changes look fine.
Comment on attachment 143378 [details] proposed patch Attachment 143378 [details] did not pass qt-wk2-ews (qt): Output: http://queues.webkit.org/results/12770014
Comment on attachment 143378 [details] proposed patch r=me
Committed <http://trac.webkit.org/changeset/118397>.