https://forums.androidcentral.com/threads/why-is-my-browser-diverting-to-a-porn-site-or-a-virus-detected-pop-up-when-i-browse-the-internet-on-chrome.457568/
Nov 4, 2014 — Try clearing your Chrome browsing history completely, including cookies, cached data, etc., both on your device's Chrome and on your desktop Chrome.