Add Chrome OS in getDisplayMedia audio notes (#5451)
Add Chrome OS in getDisplayMedia audio notes (#5451)

Chrome OS also supports sharing the full system audio, so I've added it to the notes about which OS's have the feature.
mdn/browser-compat-data,chrisdavidmills/browser-compat-data,chrisdavidmills/browser-compat-data,mdn/browser-compat-data