Merge "Split predictive back bitmask flags into a few boolean flags." into tm-dev am: f608b183

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/17491587



Change-Id: I64872e6bc06e2e6f0eacd913509c5bd1b52fc1ce
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>