Chrome Version       :  54.0.2840.98 (64-bit)
OS version           : mac OS 10.12.1 (16B2657)

What steps will reproduce the problem?
(1)Go to any webpage
(2)Do a search on webpage by cmd + F
(3)Now press escape key.

What is the expected result?
-Searching is exited and cursor moves back to webpage.

What happens instead?
-Chrome exits fullscreen.

No a big problem but still we should solve it soon.
Thank you Google for google.