Implement hide-autofill-popup
Implement hide-autofill-popup

fix #3816
fix #4540
fix #5023

Auditors: @bbondy

Test Plan:
1. Go to https://github.com/brave/browser-laptop/issues
2. In the filters textbox, start typing characters until autocomplete pops up
3. Push enter to submit
4. Scroll the page should dismiss the popup

1. Go to https://github.com/brave/browser-laptop/issues
2. In the filters textbox, start typing characters until autocomplete pops up
3. Push enter to submit
4. Popup should be dismissed

pmkary/braver,dcposch/browser-laptop,willy-b/browser-laptop,timborden/browser-laptop,jonathansampson/browser-laptop,darkdh/browser-laptop,darkdh/browser-laptop,diasdavid/browser-laptop,diasdavid/browser-laptop,diasdavid/browser-laptop,willy-b/browser-laptop,jonathansampson/browser-laptop,dcposch/browser-laptop,timborden/browser-laptop,luixxiul/browser-laptop,pmkary/braver,willy-b/browser-laptop,diasdavid/browser-laptop,timborden/browser-laptop,luixxiul/browser-laptop,pmkary/braver,jonathansampson/browser-laptop,darkdh/browser-laptop,darkdh/browser-laptop,dcposch/browser-laptop,timborden/browser-laptop,willy-b/browser-laptop,luixxiul/browser-laptop,pmkary/braver,dcposch/browser-laptop,jonathansampson/browser-laptop,luixxiul/browser-laptop