[automerger skipped] DO NOT MERGE Add cross-user check for getDefaultSmsPackage(). am: 0abccabf am: bd70751b -s ours am: 64e7a725 -s ours am: 750c4286 -s ours

am skip reason: subject contains skip directive

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/14987346

Change-Id: I4dd75b641d3c859e2e7ff9d7e8898093642d1935