Do people really not know that Chrome has an option to reopen itself with the tabs you had open last? Preferences > Basics > On Startup > Reopen the pages that were open last.
I initially thought Cmd+Shift Q would be better, but that is tied to System Logout.
Edit: after I RTFA, I see this is much like what the article suggested. The only real difference is that my approach prevents you from quitting from the keyboard at all.
[0] https://chrome.google.com/extensions/detail/edacconmaakjimmf...