tree 2ff6850beaac8818cba52c56caea9e35e9816557
parent 6fa531e0153d9b76994adbc631fed0a591e7ef93
author Dianne Hackborn <hackbod@google.com> 1439595794 -0700
committer Dianne Hackborn <hackbod@google.com> 1439854374 -0700

Fix issue #23214751: Get a GPS fix before going in to doze

This introduces a new phase of device idle mode, immediately
before going idle (once we are sure the device is not moving),
try to collect a location for the device so that any later
requests for it will have a good chance of having an accurate
value.

We do this with two location requests: one a single-shot as
accurate as possible location, and a second longer-running
attempt to get an accurate location from the GPS.  There is
a limit on how long we will try to collect the location (default
is 30 seconds), and we stop collection once we reach a desired
accuracy (default is 20 meters).

Also cleanup various transition paths out of the normal state
flow to clean up any active state we may have running.

Change-Id: Ibd3d2e9a720fbfd9640755baf5547180dd409f6a