Merge "Only take vertical, upward velocity into account for escaping the...

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

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

Change-Id: I2dcb5c8bdb9313d90de356dbf1eaa31e57ac489d