intersection-observer-entry-interface.html is failing on the bots, but does not when the test is run locally on its own.
The bug is that TestController::ensureViewSupportsOptionsForTest() early returns if it thinks the current view supports the new test options. However, the code fails to check for a difference in the enableIntersectionObserver option.
In general, this code is confused about options that must be set before view creation, and those that can be set as normal preferences.
Created attachment 295585 [details]
Comment on attachment 295585 [details]
Clearing flags on attachment: 295585
Committed r209073: <http://trac.webkit.org/changeset/209073>
All reviewed patches have been landed. Closing bug.