Chrome Version       : 68.0.3440.68
OS Version: OS X 10.13.5
URLs (if applicable) : https://jsbin.com/vehenoliga/1/edit?html,output

What steps will reproduce the problem?
1. Go to https://jsbin.com/vehenoliga/1/edit?html,output, click within the "Número de documento" field

What happens? 
Chrome shows autocomplete info for my credit cards

What should happen?
Chrome should not show credit card autocomplete info, the input element includes `autocomplete="new-doc"`. According to https://bugs.chromium.org/p/chromium/issues/detail?id=468153, if Chrome encounters an autocomplete field it doesn't know, it shouldn't provide autocomplete info.

If you change the label for the field and remove "Número", Chrome no longer shows credit card autocomplete info.



From the original report:
Garbarino (https://www.garbarino.com) is using Autofill for the checkout form, and started to see that Chrome is suggesting credit card values for a field that belongs to the user's national ID.

They are using `autocomplete="new-doc"`, which is not a standard value, in an attempt to prevent any automatic field to be shown.

Steps to reproduce:
1. Go to a product: https://www.garbarino.com/producto/celular-libre-motorola-moto-c-negro/21cc6f3382
2. Click on "Comprar".
3. Click on "Continuar".
4. Complete information, until step 3.
5. Start typing any values on the field: "Número de documento".


UserAgentString: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.68 Safari/537.36