fast/ruby/ruby-justification-hittest.html has text differences and fast/ruby/ruby-justification.html has image differences when running the tests in safari-600.5-branch.
Created attachment 251322 [details] ruby-justification-diff
Created attachment 251323 [details] ruby-justification-hittest-diff
These tests were merged to safari-600.5-branch in r179029.
Marked as ImageOnlyFailure in r183108: <http://trac.webkit.org/changeset/183108>