Entering full screen mode shows desktop linen instead of WKView the first time.
<rdar://problem/13774540>
Created attachment 200135 [details] Patch
Committed r149439: <http://trac.webkit.org/changeset/149439>
(In reply to comment #3) > Committed r149439: <http://trac.webkit.org/changeset/149439> This caused bug 115617.