Merge "Make sure prefetch tracking affects job readiness." into tm-qpr-dev am: 686bce22

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/19509166



Change-Id: Id40f0c3a457bd545c7e7e801f68eec7dc84ba31e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>