Merge "Add SwipeHelper dump to better understand the error state." into udc-dev am: fb1709fd am: 1642fbd7 am: a52856b6 am: 45561ce7

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23449469



Change-Id: If21342275ef6bf5915e6ecb2e9ae3d48d84e50e3
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>