Merge "Wait for bubbles to be loaded in BubbleDataRepositoryTest" into udc-qpr-dev am: dd8315d3

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23924692



Change-Id: I971c36372352c981b8e6a4490baa65f388101f1c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>