Unskip a series of tests that seem to be passing locally. Also unskip
        a test that was mistakenly reskipped in r77979 due to what looks like a
        merge issue. Rebaseline two of these test which have results originating
        from long ago.

        * platform/gtk/Skipped: Unskip some tests.
        * platform/gtk/editing/selection/14971-expected.txt:
        * platform/gtk/editing/selection/inline-closest-leaf-child-expected.txt:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@77982 268f45cc-cd09-0410-ab3c-d52691b4dbfc