USB Webcam on Chromebook not working.

Unfortunately Google does not support external camera access on Android for ChromeOS. An Android app can not use the external camera. 

We would absolutely love to add support for external usb cameras. It's the one feature that we got asked a lot from ChromeOS users. We asked Google and got no response about it.

Please do contact the ChromeOS team. The more people complain the sooner this issue gets resolved.