Merge "Allow to show icon style splash screen when launched from Shell." into tm-dev am: 9b30f9e9 am: 87d618d6

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/17071749

Change-Id: I1b378b046f4b9bd8bd436853b5d4ad803f95baa2