chromium/chrome/test/data/password/filled_simple_signup_form.html

<!--
    A mock signup form. Essentially the same as filled_simple_password_form.html,
    but includes an additional text field which will cause it to be treated differently.
 -->
<html>
<head>
  <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0"/>
</head>
<body>
<!-- This form should trigger automatic generation -->
<form method="POST" action="done.html">
  <input type="text" id="other_info" name="other_info" value="info">
  <input type="text" id="username_field" name="username_field" value="username" autocomplete="username">
  <input type="password" id="password_field" name="password_field" autocomplete="new-password">
  <input type="submit" id="input_submit_button" name="input_submit_button">
</form>
<!--
  This form is used to test manual generation and ideally shouldn't trigger automatic generation.
-->
<form method="POST" action="done.html">
  <input type="text" id="other_info_manual" name="other_info_manual" value="info">
  <input type="text" id="username_field_manual" name="username_field_manual" value="username">
  <input type="password" id="password_field_manual" name="password_field_manual">
  <input type="submit" id="input_submit_button_manual" name="input_submit_button_manual">
</form>
</body>
</html>