Add help url for remote display.

Bug: 11736504
Change-Id: I83d278731cf853ff911ff1a8b82a942881cb4727
Put fragment in specific activity's whitelist

Change-Id: I782dc8ec29e49a834832dc8357b3fdb12846e8a9
[1/2] Lockscreen notifications / blur
Merge commit '2aaa988ba1886fc6177616c1c58b3149056b57fb'