Merge "File size seal for memory mapped region" into tm-dev am: c23f1b73bc am: c555aa2f95

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

Change-Id: I6635eb79be40cfb9a370217c4ee51ef4c7bd66c2
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>