commit c83975ab1e1569ec023f166971fc76b110618d01
author Daniel Erat <derat@chromium.org> Fri Apr 04 08:53:44 2014 -0700
committer chrome-internal-fetch <chrome-internal-fetch@google.com> Fri Apr 18 09:23:59 2014 +0000
tree 97b63fbc8523e333f665a158c6698dcee7b6798c
parent e5c7eb1d1399f3c6c7fb566aab0ff3de47471ce8

metrics: Clean up user-active code.

Stop listening for the soon-to-deleted PowerStateChanged
D-Bus signal from powerd; the code that was listening for
it had some issues (there was no guarantee that it'd run
before the system suspended, and resumes weren't handled at
all).

Also remove the session-state- and screen-lock-handling
code; it provided an inaccurate view of user activity (what
if the user is listening to music with the screen locked or
if they don't have screen-locking enabled?).

Track uptime instead via a timer that fires every five
minutes.

BUG=chromium:359619
TEST=manual: ran metrics_daemon --nodaemon and watched the
     logs

Change-Id: I4ad74773daefa01afdea080d20001ff1944c2eee
Reviewed-on: https://chromium-review.googlesource.com/195491
Reviewed-by: Daniel Erat <derat@chromium.org>
Commit-Queue: Daniel Erat <derat@chromium.org>
Tested-by: Daniel Erat <derat@chromium.org>