Code review comment for lp:~kdub/mir/demo-stream-titlebars

This doesn't seem to get all the focus based repainting right:

$ bin/mir_demo_server
$ bin/mirrun gnome-terminal

...

in the terminal:

$ mir_demo_client_multiwin

Expected: multiwin has bright (focussed) titlebars, terminal has dim (unfocussed) titlebars
Actual .: Both the terminal and multiwin have "focus" titlebars.