MoKeeHelper: improve when activity killed

Change-Id: If6997e5cb7555d2fd57d8a5b57bb7b65356968d2
add parentActivityName

Change-Id: Ie62c4ab713f17d7df750bdc85b2b9c33601aa5a7
MoKeeHelper: fix download style

Change-Id: Id788658a6358ae84d98e151b2976e93bfe9895fd