Code review comment for lp://staging/~michael-sheldon/maliit/obey-unity8-focus

Hi Michael - I'm happy with the higher level design answers that you provided. I had one small observation in that I left inline. I'm going to go ahead and give this my approval but would like you to follow up on the observation. I'm assuming that you'll get someone more familiar with maliit/Mir to give a closer code review than I can provide but I've given the diff a cursory look.