Merge "[multi-shade] Launcher touch integration" into udc-dev am: 86060227 am: 8bc9b232

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/22339346



Change-Id: I8510d3b5af344158cae18bbc51dbad68acf86ea2
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>