Chrome Version       : 53.0.2785.116 (64-bit)
URLs (if applicable) : -
OS version               : 10.12 (16A323)
Behavior in Safari 3.x/4.x (if applicable): -
Behavior in Firefox 3.x (if applicable): -
Behavior in Chrome for Windows: -

What steps will reproduce the problem?
(1) Open Chrome and go into Fullscreen mode
(2) Press CMD+F for 'Find'
(3) Press ESC

What is the expected result?

The Find window should close.

What happens instead?

Chrome leaves the Fullscreen mode.