Jeff Sharkey 3e013e85b0 Track foreground activities in battery stats.
To help correlate battery usage against actual foreground app usage,
start tracking time on a per UID basis.  It uses the nesting feature
of StopwatchTimer to track multiple PIDs inside the same UID.

Improves units on docs, and persists foreground CPU time with a
consistent ordering.  Reports foreground activities time and
foreground CPU time.

Change-Id: I95d12963923e3fd421730f6fbfc842dfd8d3a055
2013-04-25 17:01:37 -07:00
..
2013-04-12 15:45:47 -07:00