The Gtk port already builds with video track feature enabled. What's missing is enabling this feature in RuntimeEnabledFeatures[1]. [1] http://trac.webkit.org/browser/trunk/Source/WebCore/bindings/generic/RuntimeEnabledFeatures.cpp#L179
Setting the depend flag on bug #72279. After the fix for that test lands, all tests should work and can be unskipped altogether.
Created attachment 135992 [details] Patch
Comment on attachment 135992 [details] Patch Clearing flags on attachment: 135992 Committed r113446: <http://trac.webkit.org/changeset/113446>
All reviewed patches have been landed. Closing bug.