What steps will reproduce the problem?
(1) Open the color picker in DevTools
(2) Try to set color by dragging the color/opacity slider or clicking in the spectrum

What is the expected output?
Color should change when mouse moves

What do you see instead?
Color doesn't change when mouse moves


Bisect (going from blank color picker to unresponsive color picker):
https://chromium.googlesource.com/chromium/src/+log/3fca2b4fdb391fa3c14386af8b72fc2092657029..897ee2fbd5f124e9c99131e1919b512acfb78e60