Re: Emacs's set-frame-size can not work well with gnome-shell?

[martin rudalics]

> The behavior seems to be the same (dragging, not resizing; including dragging 
by the borders).

Earlier your 'frame-geometry' reported that the child frame has no
borders.  So there should be no dragging by the borders, only resizing
via the internal borders.  Hence this behavior sounds strange.

> BTW, somewhat curiously the red border only shows up after I click on the 
child frame.

Happens here as well, sometimes.  It appears right away with an
optimized GTK build, though.

martin