DO NOT MERGE: Introduce DPMS shim for active DO/PO check am: bdd52cb48b am: 9e6305e3b0 am: fcebc45fb0

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1486196

Change-Id: I76bfbffc3485cd07675ffc8c8c64f11a8a7d5d03