Speculative easter egg in Google Chrome

I have been observing this inline search on may Mac Chrome since a few days now. This empty padded top section always gave my OCD some creeps. I felt it as a bug. But when I tried to investigate further, it seems as an placeholder for an Easter egg. See the attached screen shot: http://t.co/Ask1YhGpFW

Anyone else facing a similar issue? The Chrome on my other Machines do not exhibit such a behaviour. I would probably in be A/B testing rollout on my this chrome.

Anyone figured out what this could potentially be?