Merge "Log letterbox persistent positioning" into tm-qpr-dev am: 4556613637 am: 5a1d1c4397

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/20609072

Change-Id: Ia95bdbed1a7a7db2172fd5a4543ba061e2fb52f3
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>