A Chrome Extension to pick a default audio output device for HTML5 audio and video elements
The extension finds HTML5 audio and video elements within the document tree and manipulates the sinkId in order
to switch to the desired audio output device. The extension does not and will never find flash objects.
It also does not find audio/video node objects (new Audio(...)) that have not been inserted into the document tree.
Note that the API requires a successful call to getUserMedia() for every site with audio sinks that
need to be manipulated which - as a result - creates entries under contentSettings['microphone'], i. e.
it allows those sites to access your microphone.