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: 2cb6c040

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



Change-Id: Id6d2976b16a18aaa70ffcf19f77b6da9e80b912f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>