Explicitly communicate lifecycle, enabling system_server to cache stats when actively being used. Bug: 6236498 Change-Id: Ieecc4b1d4fd46aeb5207c4ba9b450e04e9438d00
When lauching data usage, force NetworkStatsService poll to update with recent data. Also move UID summary data to Loader pattern. Bug: 4515856 Change-Id: Ia8c70d8d0c863da3b8e956e4066d4f69fba30473