(desktop-restore-eager, desktop-lazy-verbose, desktop-lazy-idle-delay):

(desktop-restore-eager, desktop-lazy-verbose, desktop-lazy-idle-delay):
New customizable variables.
(desktop-buffer-args-list): New variable.
(desktop-append-buffer-args): New function.
(desktop-save): Call desktop-append-buffer-args for some buffers.
(desktop-lazy-create-buffer): New function.
(desktop-idle-create-buffers): New function.
(desktop-read): Add message about buffers to restore lazily.
(desktop-lazy-abort): New command.
(desktop-clear): Call desktop-lazy-abort.
(desktop-lazy-complete): New command.