Unreviewed rebaselines for r72482.

        Since Home/End behavior is different on Mac and GTK, move the expected result added by r72482
        to platform/mac and platform/gtk, and add new expected result for other platforms.

        See also: http://trac.webkit.org/changeset/54980 and https://webkit.org/b/35066.

        * editing/selection/extend-selection-home-end-expected.txt:
        * platform/chromium-win/editing/selection/extend-selection-expected.txt: Removed.
        * platform/chromium/test_expectations.txt: Removed extend-selection.html.
        * platform/gtk/Skipped: Ditto.
        * platform/gtk/editing/selection/extend-selection-expected.txt: Removed.
        * platform/gtk/editing/selection/extend-selection-home-end-expected.txt: Added.
        * platform/mac/editing/selection/extend-selection-home-end-expected.txt: Added.
        * platform/qt/Skipped: Removed extend-selection.html.
        * platform/win/editing/selection/extend-selection-expected.txt: Removed.


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@72486 268f45cc-cd09-0410-ab3c-d52691b4dbfc