I used a simple regular expression to identify the tests missing the call to setCaptionDisplay mode,
git grep 'kind="captions" .* default>'
so I missed several other occurrences of this issue. I now added
git grep -l -e "default.*captions.*>"
git grep -l -e "captions.*default.*>"
Besides, in media/track/track-cue-rendering-on-resize.html, I added setCaptionDisplayMode before the method is defined by video-test.js, so it wouldn't work.
The new patch coming hopefully addresses all this issues.
Created attachment 209989 [details]
Comment on attachment 209989 [details]
Clearing flags on attachment: 209989
Committed r154815: <http://trac.webkit.org/changeset/154815>
All reviewed patches have been landed. Closing bug.