tree 94ba40106157852a1d3fdf0812219748e3a548db
parent 581cc1ee59d01fe4b4a31618ab4aedfa639e42b0
author Adam Lesinski <adamlesinski@google.com> 1433549302 -0700
committer Adam Lesinski <adamlesinski@google.com> 1433551627 -0700

Wait for wakeup_reasons on first init

Previously if we were initializing the wakeup callback for the first time,
we would read the wakeup_reason file and ignore the contents, sending a
wakeup_reason of "unknown" up to BatteryStats.

Now we initialize the callback and wait on it immediately. Wakeup reasons are reset
when we go into sleep, so when we wakeup, we will always have fresh wakeup reasons.

Bug:21665793

Change-Id: I20832d8a143fc2715915fcecf4bb71980f279440