UserAgent: Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/59.0.3071.109 Safari/537.36

Steps to reproduce the problem:
This is not consistent, so there are no real steps. I cannot reproduce it, but reminds me of the visual glitches that desktop notifications experience every now and again (issue 486509).

I hibernated the machine, turned it on half a day later and when I moved one of the Chrome windows to the second monitor, the issue occurred.

What is the expected behavior?
A somewhat translucent tab strip background and controls.

What went wrong?
A transparent tab strip background and no controls.
(In the screenshot, the controls are not of that window, they belong to the window below it. Below in the z-index sense)

Did this work before? N/A 

Chrome version: 59.0.3071.109  Channel: n/a
OS Version: 6.1 (Windows 7, Windows Server 2008 R2)
Flash Version: 

When I make the window not maximized, the tab strip background becomes black and the borders become light blue (Vista Basic style).
Moving it a bit makes the controls show up, but Vista Basic style.

Using Windows 7 Enterprise without any font smoothing or ClearType and with Aero Glass enabled.
 

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