On 26 Mar 2020, at 00:28, Alan Third <alan@idiocy.org> wrote:
> 
> * src/nsmenu.m (update_frame_tool_bar): Remove reference to
> updateFrameSize.
> * src/nsterm.h: Remove definition of updateFrameSize.
> * src/nsterm.m (ns_set_window_size):
> (ns_set_undecorated):
> ([EmacsView windowDidResize:]):
> ([EmacsView windowDidExitFullScreen]):
> (ns_judge_scroll_bars): Remove references to updateFrameSize.
> ([EmacsView dealloc]): Unset resize notification.
> ([EmacsView updateFrameSize:]): Remove function.
> ([EmacsView viewWillStartLiveResize]):
> ([EmacsView viewDidResize]): New functions.
> ([EmacsView initFrameFromEmacs:]): Set up resize notification.
> ([EmacsView toggleFullScreen:]): Set frame to the size of the
> contentview, not the whole window, and remove reference to
> updateFrameSize.

Thanks, Alan!

I've installed this patch and will watch for any issues.

For now Emacs is crashing on fullscreen frame deletion:
1. emacs -Q
2. C-x 5 2
3. F11
4. C-x 5 0

Backtrace from macos problem reporter is attached.