UserAgent: Mozilla/5.0 (X11; CrOS x86_64 8953.0.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/56.0.2905.0 Safari/537.36
Platform: 941.0.0 (Official Build) dev-channel swanky JavaScript	

Steps to reproduce the problem:
1. Close lid
2. Open Lid
3. 

What is the expected behavior?
Screen brightness state is persistent through sleep and wake

What went wrong?
Screen brightness reverts to lowest (non-black) level on wake from sleep

Did this work before? Yes 56.0.2902.0 Dev

Chrome version: 56.0.2905.0  Channel: dev
OS Version: 8953.0.0
Flash Version: Shockwave Flash 23.0 r0