Revert^2 "Change PlaybackState#isActiveState to isActive"

This reverts d077dbf43841f2143b8fcd1388087e1fcd25219c
because the issue was resolved.

Bug: 161331016
Test: m lint-check
Change-Id: Ic4a2025407caeb6d41db3b84a293dc249f77ad0b
5 files changed