public class FullScreenShareIndicator
FullScreenShareIndicator take care of always on top dialog
shown when we are sharing our fullscreen. This way when users go to other
application can still see an indication that their screen is shared, so
don't show sensitive information.
We use the java setAlwaysOnTop which is reported to be not working when
using fullscreen, for example if you enter fullscreen of the call (but
as you are sharing your screen it doesn't make sense). It also stops working
if other app goes in always on top, like when using windows you open task
manager and it is set as always on top, our indicator dialog will stop to
be always on top.