Merge "UsageStats: Use new settings key idle_duration2 for app idle" into mnc-dr1.5-dev am: d2e215978b am: a5c7106017
am: 6a8c328d73

* commit '6a8c328d7386d19f4590dfbfc71338b1ec208fb7':
  UsageStats: Use new settings key idle_duration2 for app idle