Work on issue #17656716: Unhandled exception in Window Manager

Remove the checks for large parcel sizes.  Those were triggering,
and identifyng the area of the problem, but also cause a lot of
trouble by making the unsafe deadlocky code there much more likely
to deadlock.

Add logging for strict mode IPCs, since those seem to be the
problem.  Only log when things look bad.

Also add a log when battery stats are reset, to diagnose why they
are getting reset when they shouldn't be.

Change-Id: I588c858fb8d8c45f3c9c164ae2de9ae01547b304