DO NOT MERGE Deleting downloads for removed uids on downloadprovider start am: 3b15466b3c am: f17f32daec am: a6de368a91 am: 84b6c3ba56 am: 0b7ca0f777
am: 0bdb50d6bd  -s ours

Change-Id: I26b8c8ee09984edd70707fe366be696a79ef9562