This is the normal state of the window.
![normal](https://f.cloud.github.com/assets/4081579/1498446/c6e55768-4834-11e3-9b8d-2620a36b0f58.jpg)
But if I scroll it using mouse wheel, the page will be scrolled and you can see a blank at the bottom.
![scrolled](https://f.cloud.github.com/assets/4081579/1498445/c6e41f24-4834-11e3-97fe-b636885b06c5.jpg)

Issue exists in both Version 31 and Version 32.
Screenshot taken in: Windows 8.1, Chrome Version 31.0.1650.4 m.

But this issue does not exist in OS X 10.8 and 10.9, latest Chrome Dev Channel Version.

Thank you~ =w=