Merge changes from topic "ndk-rust-nullables" am: fe441bf63e am: 056745276e am: f92e747e37 am: da6a9b1283

Original change: https://android-review.googlesource.com/c/platform/frameworks/native/+/1860255

Change-Id: If7352d24886c6a04ad6e2e49db570122c474a1b8