Merge "File size seal for memory mapped region" into udc-dev am: ec8148a0fd

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/native/+/24776196

Change-Id: I31b28155b674ed51ab9220eb96b9d6e77e126357
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>