How to disable auto-assume in Google Chrome

Sadly, there is still no way of disabling the feature. It has been a complaint of many users for quite some time, with google still offering no solution other than pressing the down arrow prior to hitting the return key, or consistently clearing your history so it has nothing to assume.

Forum discussion of rage discussing this exact problem: http://productforums.google.com/forum/#!category-topic/chrome/discuss-chrome/0DR-pLIVI5g

I'd love to see this changed myself. It drives me insane.