title: Is WebRTC's desktop sharing without calling chooseDesktopMedia possible?
body: <p>I am developing a chrome extension that I can use for desktop sharing using WebRTC. I need to use this extension in a sort of automation mode i.e. without user interaction. This extension is to be used as a child process of the main application and for that any permission and/or media selection dialogs shown by 'chooseDesktopMedia' has to be avoided. As far as I have read about desktop sharing using WebRTC, I have reached to a conclusion that 'chooseDesktopMedia' is must to call api for desktop sharing thus there is no way that the selection dialog can be by passed. But one thing confused me. While reading another post at Stackoverflow i.e. <a href="https://stackoverflow.com/questions/24162346/desktop-capture-chrome-plugin">Desktop capture chrome plugin</a> I found a claim that the person managed to do the above task without showing desktop/screen selection dialog. It confused me as no proper solution was provided with the claim in this thread.</p>
  
  <p>So I want to ask one simple question now. Is WebRTC's desktop sharing without calling chooseDesktopMedia possible?</p>