Unreviewed EFL gardening.

Rebaseline 2 media/track test cases after r138784.

* platform/efl/media/track/track-cue-rendering-horizontal-expected.png:
* platform/efl/media/track/track-cue-rendering-horizontal-expected.txt:
* platform/efl/media/track/track-cue-rendering-vertical-expected.png:
* platform/efl/media/track/track-cue-rendering-vertical-expected.txt:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@138788 268f45cc-cd09-0410-ab3c-d52691b4dbfc