Adding a platform-specific baseline for a new Shadow DOM test
that was introduced in r131758, the new baseline differs from
the original one just by an annoying newline at the end of the
document.

Adding test expectations for list styles test failure caused by
r131836. Adding a test expectation for a new a11y test introduced
in r131871.

* platform/gtk/TestExpectations:
* platform/gtk/fast/dom/shadow/user-modify-in-datalist-crash-expected.txt: Added.


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@131881 268f45cc-cd09-0410-ab3c-d52691b4dbfc