Updating baselines for two accessibility tests after r131674.

Updating baseline for media/video-playing-and-pause.html but still
marking the test a flaky as the render tree output can differ from
the new baseline.

* platform/gtk/TestExpectations:
* platform/gtk/accessibility/inline-continuations-expected.txt:
* platform/gtk/accessibility/media-element-expected.txt:
* platform/gtk/media/video-playing-and-pause-expected.txt:


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@131708 268f45cc-cd09-0410-ab3c-d52691b4dbfc