Keisuke Kuroyanagi f36a97ab3a Try decaying user history at hourly intervals.
Bug: 6669677

Change-Id: Ib465fa7e1a7f289a07843535ba89d0dd5259e803
2013-10-02 18:06:08 +09:00
..
2013-09-30 19:06:56 -07:00
2012-07-28 21:24:29 +09:00
2012-10-05 11:08:31 +09:00