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: de33aa77 am: 935f1afd am: a87f168e

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



Change-Id: I722a0878b4ea373f2a51aa5f86483a4a4ea5ae5e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>