doc-view and pdf-view page browsing in other frame

;; Doc-view reading

(defun other-frame-doc-view-next-page ()
  (interactive)
  (other-frame 1)
  (case major-mode
    ;; The timer causes race-conditions
    ('pdf-view-mode (progn (pdf-view-next-page-command)
                           (when pdf-view--next-page-timer
                             (cancel-timer pdf-view--next-page-timer)
                             (pdf-view-redisplay))))
    ('doc-view-mode (doc-view-next-page))
    (t (message "Not in pdf-view or doc-view-mode")))
  (other-frame -1)
  )

(defun other-frame-doc-view-previous-page ()
  (interactive)
  (other-frame 1)
  (case major-mode
    ('pdf-view-mode (progn (pdf-view-previous-page-command)
                           (when pdf-view--next-page-timer
                             (cancel-timer pdf-view--next-page-timer)
                             (pdf-view-redisplay))))
    ('doc-view-mode (doc-view-previous-page))
    (t (message "Not in pdf-view or doc-view-mode")))
  (other-frame -1))