src/tools/page_cycler/database/update-transactions/index.html

<!DOCTYPE HTML>
<html>
<title>Update transactions</title>
<script src="../head.js"></script>
<script src="../common.js"></script>
<script>
var randomString = getRandomString();
var idCounter = 0;

function transactionCallback(tx) {
  tx.executeSql('UPDATE Test SET Foo = ? WHERE ID = ?',
                [randomString, idCounter++],
                function(tx, data) {}, function(tx, error) {});
}
</script>

<body>
<script>
  runPerformanceTest({
    dbName: "UpdateTransactions",
    readOnly: false,
    insertRowsAtSetup: true,
    transactionCallback: transactionCallback,
    customRunTransactions: null
  });
</script>
</body>
</html>