CHROMIUM: diasydog: count HwWatchdogReboot CRos-events

This is part 2/2 where we look for symptoms of HwWatchdogReboot events
and add them to the CrosEvent histogram.

BUG=chromium:221000
TEST=First, trigger watchdog and verify chrome://histograms updated CrosEvents
Second, confirm daisydog is running after reboot in either case.
(initial version was getting errors in pre-start script)

Change-Id: I88f14a14842f1db5b9e0fe8cb134eb3bb3ea9624
Signed-off-by: Grant Grundler <grundler@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/46980
Reviewed-by: Luigi Semenzato <semenzato@chromium.org>
1 file changed