All fullscreen videos should be able the control the controls manager rdar://problem/27009446
This patch is going to depend on https://bugs.webkit.org/show_bug.cgi?id=159437 because it uses a new function introduced in that patch. I expect the bots to fail for the time being.
Created attachment 282958 [details] Patch
Thanks Eric! https://trac.webkit.org/changeset/202924