Merge "Skip transfer starting window from above if current activity has drawn." into udc-dev am: e765320b am: 438b0a98 am: fd4d77a4 am: e10776c8

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



Change-Id: I4c2229aa6559727cf6d72f9791388e3b5ba7cec5
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>