Merge "Add dialog present support for AutofillService." into tm-dev am: 037bcfce15

Original change: https://googleplex-android-review.googlesource.com/c/platform/development/+/18030509

Change-Id: Ie61b770c63661f37f95ac3148c39e0d8b342b0eb
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>