Merge "Add unit tests for SplitAttributes runtime APIs" into udc-dev am: f3710c72 am: f619b4ef

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/21473685



Change-Id: I865b36d678694951099916fb677114a7476e6fac
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>