Comment 7 for bug 1233245

Passing the bug to Robert Carr, now that it's about fixing the focus in unity8-mir. I.e. making unity8 focused when it's on foreground.
Since it will take me quite a bit to wrap my head around all those mir interfaces regarding focus and we want this fix for yesterday, I believe Robert (author of a good deal of this mir focus code) will be able to get it fixed waaaay faster than myself.