Apps that target O+ are always subject to background restrictions.
Legacy apps' background restriction is subject to the OP_RUN_IN_BACKGROUND
app op.
Apps with these properties are exempted from background restrictions:
- persistent process
- currently on the idle battery whitelist
- global whitelist for things like bluetooth services
Bug 30953212
Change-Id: Icc19b2fbc05f40dcf8c3fc4abf718c373dc8d4f6
42a386b771