Switch to storing policy per-user instead of per-app, meaning each
user has control over their own set of apps. Summarize the usage of
non-current users. Only allow owner to make changes to overall
network policy.
Hide auto-sync menu when viewing app details. Search for
MANAGE_NETWORK_USAGE intent across all package names sharing a UID.
Bug: 7121279, 5419594, 6978663
Change-Id: Ia70f04df70d27da27faccb947cd27021c628a41a