tree 7392f2015cd8ea477bd5a0b3b5e81236c31e2e93
parent e9c77aee60fbb781db916d32fe1db81e1d973f8f
author Dianne Hackborn <hackbod@google.com> 1395425231 -0700
committer Dianne Hackborn <hackbod@google.com> 1395443699 -0700

Battery stats: track actually running time

Use the uptime while creating the battery stats history to
generate a new event indicating when the CPU is actually running.
We can do this in combination with the new event reporting when
the CPU comes awake, looking at the difference between the
uptime and elapsed time at that point to determine when it last
when to sleep.

Also use this information to generate a new set of aggregated
states, the uptime caused by each wake reason.

Finally use new radio down timestamp to adjust the times we
compute for radio use.  Note that this information is not (yet)
being used to adjust how these are recorded in the history.

Change-Id: I723b3b526c8e7d64de0cac9d1193e04132d5a3e4