Merge "[0/n] thin letterboxing reachability flag" into 24D1-dev am: 66da6b63

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/27069663



Change-Id: I27f84eb21a891528ab9d3fcce7ac115f825a0c47
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>