DO NOT MERGE Add cross-user check for getDefaultSmsPackage().

Bug: 177927831
Test: atest RoleSecurityTest
Change-Id: I1254804fb72a299e782d45f938acdf979a82f904

services/core/java/com/android/server/role/RoleManagerService.java

@@ -636,6 +636,12 @@ public class RoleManagerService extends SystemService implements RoleUserState.C
 
         @Override
         public String getDefaultSmsPackage(int userId) {
+            userId = handleIncomingUser(userId, false, "getDefaultSmsPackage");
+            if (!mUserManagerInternal.exists(userId)) {
+                Slog.e(LOG_TAG, "user " + userId + " does not exist");
+                return null;
+            }
+
             long identity = Binder.clearCallingIdentity();
             try {
                 return CollectionUtils.firstOrNull(