Merge "File size seal for memory mapped region" into tm-dev am: c23f1b73

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/native/+/24776199



Change-Id: I8e1c1c8577936533c67e4a3290285d62a0656de8
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>