Merge "[SB Refactor] Move InstantTaskExecutorRule to its own file so it can be...

Merge "[SB Refactor] Move InstantTaskExecutorRule to its own file so it can be used by other tests." into tm-qpr-dev am: 9953ddaa

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/19698749



Change-Id: Id5e86f759894dc4e579f5ce87cf985ac36323dd8
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>