Merge "Replace tasks in the same split with the dropping app" into sc-v2-dev...

Merge "Replace tasks in the same split with the dropping app" into sc-v2-dev am: 3d13d0cb am: 57020f34

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/16062196

Change-Id: I3ba2846070c895baf3c18b3ae4499d4147895ff7