I think Funnybutrandom is our resident Google Chrome user so I suspect he might know.

I don't see how it would be bothering you - doesn't GC allow you to pull away windows from Maximized?
If you're using Windows 7 I should think Windows Snap would work, just click and holding the very top of the window and pulling it down will turn it back to windowed mode.

Otherwise, either see if you can get alternative themes.

Also another thought.. Windows XP didn't allow such a feature (tabs in the title area) - so try running Chrome in Windows XP Compatibility Mode - that might cause it to fall back and make it old style.