Merge "Tweak back gesture logging output" into udc-qpr-dev am: 78ab8a9c

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23353001



Change-Id: I2342a782ee9f05f880130de49369988f51bb7182
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>