Add stub auto-translate-mode

emacs.el

@@ -1873,6 +1873,10 @@ This mode is a simplified version of `adoc-mode'."
     "Translate popup at point."
     (interactive)
     (let ((google-translate-output-destination 'echo-area))
-      (google-translate-translate "en" "ja" (current-word t t)))))
+      (google-translate-translate "en" "ja" (current-word t t))))
+  (define-minor-mode auto-translate-mode
+    "Translate word at point automatically."
+    :global nil
+    :lighter "ATranslate"))
 
 ;;; emacs.el ends here