[webkit-reviews] review requested: [Bug 84796] Implement the new stacking layer needed by the Fullscreen API and the new <dialog> element : [Attachment 170637] review comments & fix assert failure

[bugzilla-daemon at webkit.org]

Matt Falkenhagen <falken at chromium.org> has asked  for review:
Bug 84796: Implement the new stacking layer needed by the Fullscreen API and
the new <dialog> element
https://bugs.webkit.org/show_bug.cgi?id=84796

Attachment 170637: review comments & fix assert failure
https://bugs.webkit.org/attachment.cgi?id=170637&action=review