With recent changes to getUserMedia request in Chromium, now gUM will need the OnStarted event from capture device to get the successCallback.
Some test cases in
/chrome/browser/extensions/api/desktop_capture/desktop_capture_apitest.cc
/chrome/test/data/extensions/api_test/desktop_capture/test.js
are commented out in CL https://codereview.chromium.org/2721113002/ since the current chooser dialog UI returns fake source id to Window/Tab capture, from which no stream couldn't be generated.
So we need to either fake-out the chooser dialog UI or create interactive_ui_tests to make these test cases working again.
Comment 1 by sergeyu@chromium.org
, Mar 14 2017