Merge "Synchronize cache-is-ready boolean with cache readiness." into tm-dev...

Merge "Synchronize cache-is-ready boolean with cache readiness." into tm-dev am: c3c32652 am: 4a41b339 am: f790a8c5 am: fab33a1e

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/18284940



Change-Id: I35b71e46560e60bc153e040ddad2c7fbc4230bd2
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>