[gnumeric] Add signals padding to SheetObjectClass.

[Jean BrÃfort <jbrefort src gnome org>]

commit 44c2d0cfa25706457fc24106b494d03e6f0e2145
Author: Jean Brefort <jean brefort normalesup org>
Date:   Sun Sep 9 09:32:37 2012 +0200

    Add signals padding to SheetObjectClass.

 src/sheet-object-impl.h |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/src/sheet-object-impl.h b/src/sheet-object-impl.h
index 5d22f3e..bffaa30 100644
--- a/src/sheet-object-impl.h
+++ b/src/sheet-object-impl.h
@@ -50,6 +50,8 @@ typedef struct {
 	/* Signals */
 	void (*bounds_changed) (SheetObject *so);
 	void (*unrealized)     (SheetObject *so);
+	void (*signal_pad1)	(void);
+	void (*signal_pad2)	(void);
 
 	/* Virtual methods */
 	gboolean (*remove_from_sheet) (SheetObject	*sheet_object);