Re: [whatwg/fullscreen] Reinstate the hierarchy restrictions (#91)

Hmmm... why do we abounding this?

I think this was raised due to concern on `fullscreenchange` event for exiting fullscreen wouldn't go through every fullscreen element in the stack when there are multiple leaf fullscreen elements, which I raised in [#89 (comment)](https://github.com/whatwg/fullscreen/issues/89#issuecomment-302381330) and you agreed that it makes sense.

Web platform test `fullscreen/api/element-ready-check-fullscreen-element-sibling-manual.html` checks this behavior and it's currently failing on Gecko as we still enforce the hierarchy restrictions, and given that concern I think that still makes sense. So we should revive this PR and change that test.

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Received on Thursday, 20 September 2018 01:00:16 UTC