Merge "Add outputLength method" into udc-dev am: d379634a83 am: bd56e9d6d1

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/native/+/22369744

Change-Id: Ib05eeaa803676b1a5438b1a58b148b9725a4ab31
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>