[evince] ev-zoom-action: Add enumeration for zoom_in/out buttons

[Germán Poo-Caamaño <gpoo src gnome org>]

commit 9f326ce21eab1c7c4fa1d3a5d7eec1c2294e8419
Author: Germán Poo-Caamaño <gpoo gnome org>
Date:   Wed Jul 11 15:53:13 2018 -0400

    ev-zoom-action: Add enumeration for zoom_in/out buttons
    
    After the menu reorganization, the zoom action menu has three sections.
    Here we add the sections for zooming in and out actions.

 shell/ev-zoom-action.c | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/shell/ev-zoom-action.c b/shell/ev-zoom-action.c
index 297e7be0..8ca93616 100644
--- a/shell/ev-zoom-action.c
+++ b/shell/ev-zoom-action.c
@@ -37,6 +37,7 @@ enum
 };
 
 enum {
+        ZOOM_IN_OUT_SECTION,
         ZOOM_MODES_SECTION,
         ZOOM_FREE_SECTION
 };