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

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



Change-Id: I7ff792c9026a2cc5e6d07c8e3ef0e4f99ff7dee7
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>