Click on the Chrome Menu button

Hover your mouse over the "More Tools" menu item and click "Clear Browsing Data" in the sub-menu

Select "All Time" and click "Clear Data"

Click the "Settings and More" button

Select "Settings" on the menu

Click on "Privacy, Search, and Services"

Click on "Choose what to clear"

Select what you'd like to clear, and click "Clear Now"

Click on the "Safari" menu

Click on the "Clear History" menu item

Change the dropdown to "All History" and click "Clear History"

Click the menu button and select Settings

Select Privacy and Security

Scroll to the Cookies and Site Data section, and click Clear Data

Check Cached Web Content and select Clear