code: void collectDbStatsUnsafe(ArrayList<com.couchbase.lite.internal.database.sqlite.SQLiteDebug.DbStats> dbStatsList) {
          dbStatsList.add(getMainDbStatsUnsafe(0, 0, 0));
      }
docs: Collects statistics about database connection memory usage, in the case where the
  caller might not actually own the connection.
  
  @return The statistics object, never null.