[automerger skipped] DO NOT MERGE Add cross-user check for getDefaultSmsPackage(). am: cf1bd25a am: 44e796e1 -s ours am: a9ffa244 -s ours

am skip reason: subject contains skip directive

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/14987465

Change-Id: Iee7c168c623407e1ccfc847bd39bed248f8110a2