Chrome Version: 68.0.3432.*
OS: Win10, Lenovo Yoga 700(?)

What steps will reproduce the problem?
(1) Launch Chrome.
(2) Create two Chrome windows, both maximized.
(3) Tap the close button on the top-most window.

What is the expected result?

Expect that the top-most window closes, to reveal the one underneath.

What happens instead?

Both windows are closed, as though the tap is processed twice (e.g. as though we're processing both the press and the release events).

The same issue can be reproduced with the maximize button: maximize a Chrome window and then tap on the maximize button, and it will restore and then immediately re-maximize (though this may depend on the position it restores to also being under the tap position). 
 

Chrome Version: 67.0.3396.56
OS: Win10, Lenovo Yoga 700(?)

What steps will reproduce the problem?
(1) Launch Chrome.
(2) Create two Chrome windows, both maximized.
(3) Tap the close button on the top-most window.

What is the expected result?

Expect that the top-most window closes, to reveal the one underneath.

What happens instead?

Both windows are closed, as though the tap is processed twice (e.g. as though we're processing both the press and the release events).

The same issue can be reproduced with the maximize button: maximize a Chrome window and then tap on the maximize button, and it will restore and then immediately re-maximize (though this may depend on the position it restores to also being under the tap position).