am b2346324: am f1d14f6a: Do not advance mLastEventTime when enabling or disabling user activity.

Merge commit 'b2346324e5f6062fed7bdeaedb9cf968b05050ec' into eclair-mr2-plus-aosp

* commit 'b2346324e5f6062fed7bdeaedb9cf968b05050ec':
  Do not advance mLastEventTime when enabling or disabling user activity.