[gimp] Chain up unconditionally in GimpViewable::invalidate_preview()

[Michael Natterer <mitch src gnome org>]

commit b2fa005445d2caaa24a2bbc3c1a01f090d068e74
Author: Michael Natterer <mitch gimp org>
Date:   Tue Sep 1 23:35:26 2009 +0200

    Chain up unconditionally in GimpViewable::invalidate_preview()

 app/core/gimpdrawable.c |    3 +--
 app/core/gimpimage.c    |    3 +--
 app/core/gimplayer.c    |    3 +--
 3 files changed, 3 insertions(+), 6 deletions(-)
---
diff --git a/app/core/gimpdrawable.c b/app/core/gimpdrawable.c
index 364d1cb..079f940 100644
--- a/app/core/gimpdrawable.c
+++ b/app/core/gimpdrawable.c
@@ -323,8 +323,7 @@ gimp_drawable_invalidate_preview (GimpViewable *viewable)
 {
   GimpDrawable *drawable = GIMP_DRAWABLE (viewable);
 
-  if (GIMP_VIEWABLE_CLASS (parent_class)->invalidate_preview)
-    GIMP_VIEWABLE_CLASS (parent_class)->invalidate_preview (viewable);
+  GIMP_VIEWABLE_CLASS (parent_class)->invalidate_preview (viewable);
 
   drawable->private->preview_valid = FALSE;
 
diff --git a/app/core/gimpimage.c b/app/core/gimpimage.c
index d4010fa..7eedda2 100644
--- a/app/core/gimpimage.c
+++ b/app/core/gimpimage.c
@@ -1052,8 +1052,7 @@ gimp_image_invalidate_preview (GimpViewable *viewable)
 {
   GimpImage *image = GIMP_IMAGE (viewable);
 
-  if (GIMP_VIEWABLE_CLASS (parent_class)->invalidate_preview)
-    GIMP_VIEWABLE_CLASS (parent_class)->invalidate_preview (viewable);
+  GIMP_VIEWABLE_CLASS (parent_class)->invalidate_preview (viewable);
 
   if (image->preview)
     {
diff --git a/app/core/gimplayer.c b/app/core/gimplayer.c
index fda00c4..75f45f4 100644
--- a/app/core/gimplayer.c
+++ b/app/core/gimplayer.c
@@ -439,8 +439,7 @@ gimp_layer_invalidate_preview (GimpViewable *viewable)
 {
   GimpLayer *layer = GIMP_LAYER (viewable);
 
-  if (GIMP_VIEWABLE_CLASS (parent_class)->invalidate_preview)
-    GIMP_VIEWABLE_CLASS (parent_class)->invalidate_preview (viewable);
+  GIMP_VIEWABLE_CLASS (parent_class)->invalidate_preview (viewable);
 
   if (gimp_layer_is_floating_sel (layer))
     floating_sel_invalidate (layer);