7eee0e0ed6
ClutterContent's get_preferred_size should return a boolean weather the preferred size is valid, so in javascript we've to return this state value before out width and height. Since this was not happening, clutter was considering the width as the state (converting the non-zero value to true), the height as the width, while ignoring the returned height (that was then defaulted to 0) Fixes https://gitlab.gnome.org/GNOME/gnome-shell/issues/1020