Merge "Only take vertical, upward velocity into account for escaping the dismiss target." into rvc-dev am: 254dcfd5 am: 8066346b am: db33d28a am: 023fa456

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

Change-Id: Ia32c959bd0ce64e668819d5dcde658b107e84190