Avoid getUserBadgeNoBackgroundResId if no badge

Checks whether there actually is a badge before
calling getUserBadgeNoBackgroundResId.
(Otherwise a logcat error would have been logged, since
it is only expected to be called if there is indeed
a badge.)

Test: manual confirmation that logcat error is gone
Bug: 142482943
Change-Id: I635529d9c114b399e5626bdbb143aab29ae81a4b