Comment by amadeuspagel

And ChromeOS is designed for Chrome's tab bar, so that it is at the top edge of the screen, essentially making it infinitely tall. This is one of the things that makes surfing the web more pleasant and ChromeOS then on Windows and Mac.

With many linux window managers you can move the statusbar to the bottom, hide the titlebar and configure chrome to use the (now hidden) system titlebar for the same effect.