Chrome Version: 64.0.3282.101
Chrome OS Version: 10176.54.0
Chrome OS Platform: Bob
Network info: Wifi

Please specify Cr-* of the system to which this bug/feature applies (add
the label below).

Steps To Reproduce:
(1) Play any video from www.vimeo.com
(2) Switch video to full screen and play for a while
(3) Press Esc to switch from full screen to normal player
(4) Observe UI behavior

Expected Result:
-- No UI issue

Actual Result:
-- Observing UI issue as shown in observation video below.


How frequently does this problem reproduce? (Always, sometimes, hard to
reproduce?)
Hard to repo

What is the impact to the user, and is there a workaround? If so, what is
it?

Please provide any additional information below. Attach a screen shot or
log if possible.

Feedback report: 84948085879

Note : Once issue observed on youtube video

Observation video added below.