I managed to work around Chromium not having NaCl installed by getting the Ubuntu version of Chrome from Google and installing by right click on the downloaded .deb file and opening it with Ubuntu Software Center.
It did require a full system restart.

It'd be nice if Chromium had NaCl and made things easy, but I don't dwell. :-|

Great Android Application/Chrome Extension, runs perfect from my Win7 laptop on the road, just now setting it up at home.

I'm having the same issue running VideoStream in Chromium on Ubuntu 14.10, even after installing Chromium as you directed at the start of the thread. (I also got the message about the PPA being dead...I mostly just ignored it.)

I also went into chrome://flags and enabled NaCl.

Thanks for the help!