How to force a tab closed on Google Chrome for my iPhone? (4S running 8.1)?

A suspicious looking virus-warning popup leaves me with the only option of pressing OK which I fear may lead to more malware.

Is there a way to force the tab (or all tabs) closed when I can't get to the "X" to do it as you normally would?

Closing and reopening Chrome and turning off/on the iPhone did not help.

The issue your having is that you have an apple device…