title: Cannot read property 'chooseDesktopMedia' of undefined
body: <p>I am working on desktopCapture API of google chrome webrtc. When I run the application I am getting error <strong>"Cannot read property 'chooseDesktopMedia' of undefined"</strong>. Means browser is not able to find the chrome.desktopCapture inside chrome browser. </p>
  
  <p>My chrome browser version is 38. </p>