add a log for peek to shade expansion

Move the note_load counter into the manager, replacing
the redundant and useless notification_load counter.

Update the StatusBarTest to allow for hander side-effects.

Test: runtest systemui
Change-Id: I2551c51cc0f4627995abe4401eafc2e5adb3a8fa
Fixes: 27698560
5 files changed