Google is testing a new "unified" menu for Chromium which combines the options and wrench menus into a single menu to save space. What I find very interesting about this "unified" menu is that it uses buttons for cut, copy and paste as well as for the zoom controls.
To use the unified menu in Chromium in Ubuntu, all you have to do is install the latest Chromium build from the daily PPA, then edit the Chromium shortcut and add "--new-wrench-menu" to the run command, so basically the command looks like this:
chromium-browser --new-wrench-menu
See also: How To Enable (Encrypted) Password Sync In Chromium / Google Chrome