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

Merge "Revert "Synchronize cache-is-ready boolean with cache readiness."" into tm-dev am: 2dabd120 am: f75a3389 am: 59825de8 am: d59d7c75

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/18384536



Change-Id: Ifeb1db6fee6fb0765d4f8687f9bfde266f2fe43a
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>