[automerger skipped] DO NOT MERGE Add cross-user check for getDefaultSmsPackage(). am: cf1bd25a am: 329bb590 -s ours am: 3e904837 -s ours am: d7933771 -s ours

am skip reason: subject contains skip directive

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

Change-Id: I6b47a3c00e521704eea338e93a9267d2f0fb6783