Merge "Add a function to learn max # of elements we can add to message" into...

Merge "Add a function to learn max # of elements we can add to message" into udc-dev am: a093b270 am: 3e4eba41

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/av/+/22281771



Change-Id: I4213114a1c18475117b357294f2be4f49071655d
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>