UserAgent: Mozilla/5.0 (X11; CrOS armv7l 9460.34.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/59.0.3071.47 Safari/537.36
Platform: 9460.42.0 (Official Build) beta-channel lumpy and butterfly

Example URL:

Steps to reproduce the problem:
Starting this bug for chromebook users reporting video issues ranging from encoding errors, no video, no sound, pixilated video.

Disabling the flag fixes.chrome://flags/#disable-accelerated-video-decode

CBC private topic
https://productforums.google.com/forum/#!private-topic/chromebook-central+rs-mentor/hE7JdZsedt0;context-place=private-forum/chromebook-central+rs-mentor

What is the expected behavior?

What went wrong?
Reports from users:

Google Chrome	59.0.3071.57 (Official Build) beta (64-bit)
Revision	0
Platform	9460.42.0 (Official Build) beta-channel lumpy
Firmware Version	Google_Lumpy.2.111.0

Google Chrome	59.0.3071.57 (Officiell version) beta (64 bitar)
Version	0
Plattform	9460.42.0 (Official Build) beta-channel butterfly
Firmwareversion	Google_Butterfly.2788.39.0

No issue on

Version 58.0.3029.140 (64-bit)
Platform 9334.72.0 (Official Build) stable-channel parrot
Firmware Google_Parrot.2685.37.0

Did this work before? N/A 

Is it a problem with Flash or HTML5? N/A

Does this work in other browsers? N/A

Chrome version: 59.0.3071.57  Channel: beta
OS Version: 9460.40.0
Flash Version: 

Contents of chrome://gpu: