Merge "Only take vertical, upward velocity into account for escaping the dismiss target." into rvc-dev am: 254dcfd5 am: 8066346b am: a691a161 am: c6ac3ca3

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/11904326

Change-Id: I03205a29c50f14fe4ff31d0c70151fb7f2be5c07