Use auto-hscroll-mode rather than the alias automatic-hscrolling

* lisp/mouse.el (mouse-drag-track):
* lisp/speedbar.el (speedbar-frame-mode):
Use auto-hscroll-mode rather than the alias automatic-hscrolling.

lisp/ChangeLog

+2012-04-17  Glenn Morris  <rgm@gnu.org>
+
+	* mouse.el (mouse-drag-track):
+	* speedbar.el (speedbar-frame-mode):
+	Use auto-hscroll-mode rather than the alias automatic-hscrolling.
+
 2012-04-16  Leo Liu  <sdl.web@gmail.com>
 
 	* progmodes/python.el: Trivial cleanup.

lisp/mouse.el

 ;;; mouse.el --- window system-independent mouse support
 
-;; Copyright (C) 1993-1995, 1999-2012  Free Software Foundation, Inc.
+;; Copyright (C) 1993-1995, 1999-2012 Free Software Foundation, Inc.
 
 ;; Maintainer: FSF
 ;; Keywords: hardware, mouse
@@ -805,8 +805,8 @@ DO-MOUSE-DRAG-REGION-POST-PROCESS should only be used by
 				  (= click-count 1)))
 	 ;; Suppress automatic hscrolling, because that is a nuisance
 	 ;; when setting point near the right fringe (but see below).
-	 (automatic-hscrolling-saved automatic-hscrolling)
-	 (automatic-hscrolling nil)
+	 (auto-hscroll-mode-saved auto-hscroll-mode)
+	 (auto-hscroll-mode nil)
 	 event end end-point)
 
     (setq mouse-selection-click-count click-count)
@@ -838,7 +838,7 @@ DO-MOUSE-DRAG-REGION-POST-PROCESS should only be used by
 	  ;; Automatic hscrolling did not occur during the call to
 	  ;; `read-event'; but if the user subsequently drags the
 	  ;; mouse, go ahead and hscroll.
-	  (let ((automatic-hscrolling automatic-hscrolling-saved))
+	  (let ((auto-hscroll-mode auto-hscroll-mode-saved))
 	    (redisplay))
 	  (setq end (event-end event)
 		end-point (posn-point end))

lisp/speedbar.el

 ;;; speedbar --- quick access to files and tags in a frame
 
-;; Copyright (C) 1996-2012  Free Software Foundation, Inc.
+;; Copyright (C) 1996-2012 Free Software Foundation, Inc.
 
 ;; Author: Eric M. Ludlam <zappo@gnu.org>
 ;; Keywords: file, tags, tools
@@ -1022,7 +1022,7 @@ supported at a time.
   (set (make-local-variable 'dframe-delete-frame-function)
        'speedbar-handle-delete-frame)
   ;; hscroll
-  (set (make-local-variable 'automatic-hscrolling) nil) ; Emacs 21
+  (set (make-local-variable 'auto-hscroll-mode) nil)
   ;; reset the selection variable
   (setq speedbar-last-selected-file nil))