1. DomName('SQLStatementErrorCallback')
  2. Experimental()
void SqlStatementErrorCallback(SqlTransaction transaction, SqlError error)

Source 

@DomName('SQLStatementErrorCallback')
// http://www.w3.org/TR/webdatabase/#sqlstatementerrorcallback
@Experimental() // deprecated
typedef void SqlStatementErrorCallback(SqlTransaction transaction, SqlError error);