Merge "Skip transfer starting window from above if current activity has drawn." into udc-dev am: e765320b am: 438b0a98 am: fd4d77a4

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23629576



Change-Id: I5947db8a2ff1d0bf9b463931838c1d01456b448a
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>