[nautilus] file: remove unnecessary ref/unref

[Cosimo Cecchi <cosimoc src gnome org>]

commit 605b2e0fae5799084cbd5262f921bc2c60300211
Author: Cosimo Cecchi <cosimoc gnome org>
Date:   Tue Sep 9 15:17:18 2014 -0700

    file: remove unnecessary ref/unref

 libnautilus-private/nautilus-file.c |   30 +++++++++++++-----------------
 1 files changed, 13 insertions(+), 17 deletions(-)
---
diff --git a/libnautilus-private/nautilus-file.c b/libnautilus-private/nautilus-file.c
index eefc28c..a8ad853 100644
--- a/libnautilus-private/nautilus-file.c
+++ b/libnautilus-private/nautilus-file.c
@@ -4427,7 +4427,7 @@ nautilus_file_get_thumbnail_icon (NautilusFile *file,
                                  NautilusFileIconFlags flags)
 {
        int modified_size;
-       GdkPixbuf *raw_pixbuf, *scaled_pixbuf;
+       GdkPixbuf *pixbuf;
        int w, h, s;
        double thumb_scale;
        GIcon *gicon;
@@ -4444,10 +4444,8 @@ nautilus_file_get_thumbnail_icon (NautilusFile *file,
        }
 
        if (file->details->thumbnail) {
-               raw_pixbuf = g_object_ref (file->details->thumbnail);
-
-               w = gdk_pixbuf_get_width (raw_pixbuf);
-               h = gdk_pixbuf_get_height (raw_pixbuf);
+               w = gdk_pixbuf_get_width (file->details->thumbnail);
+               h = gdk_pixbuf_get_height (file->details->thumbnail);
 
                s = MAX (w, h);
                /* Don't scale up small thumbnails in the standard view */
@@ -4464,29 +4462,27 @@ nautilus_file_get_thumbnail_icon (NautilusFile *file,
 
                if (file->details->thumbnail_scale == thumb_scale &&
                    file->details->scaled_thumbnail != NULL) {
-                       scaled_pixbuf = file->details->scaled_thumbnail;
+                       pixbuf = file->details->scaled_thumbnail;
                } else {
-                       scaled_pixbuf = gdk_pixbuf_scale_simple (raw_pixbuf,
-                                                                MAX (w * thumb_scale, 1),
-                                                                MAX (h * thumb_scale, 1),
-                                                                GDK_INTERP_BILINEAR);
+                       pixbuf = gdk_pixbuf_scale_simple (file->details->thumbnail,
+                                                         MAX (w * thumb_scale, 1),
+                                                         MAX (h * thumb_scale, 1),
+                                                         GDK_INTERP_BILINEAR);
 
                        /* We don't want frames around small icons */
-                       if (!gdk_pixbuf_get_has_alpha (raw_pixbuf) || s >= 128 * scale) {
+                       if (!gdk_pixbuf_get_has_alpha (file->details->thumbnail) || s >= 128 * scale) {
                                if (nautilus_is_video_file (file)) {
-                                       nautilus_ui_frame_video (&scaled_pixbuf);
+                                       nautilus_ui_frame_video (&pixbuf);
                                } else {
-                                       nautilus_ui_frame_image (&scaled_pixbuf);
+                                       nautilus_ui_frame_image (&pixbuf);
                                }
                        }
 
                        g_clear_object (&file->details->scaled_thumbnail);
-                       file->details->scaled_thumbnail = scaled_pixbuf;
+                       file->details->scaled_thumbnail = pixbuf;
                        file->details->thumbnail_scale = thumb_scale;
                }
 
-               g_object_unref (raw_pixbuf);
-
                /* Don't scale up if more than 25%, then read the original
                   image instead. We don't want to compare to exactly 100%,
                   since the zoom level 150% gives thumbnails at 144, which is
@@ -4502,7 +4498,7 @@ nautilus_file_get_thumbnail_icon (NautilusFile *file,
                DEBUG ("Returning thumbnailed image, at size %d %d",
                       (int) (w * thumb_scale), (int) (h * thumb_scale));
 
-               icon = nautilus_icon_info_new_for_pixbuf (scaled_pixbuf, scale);
+               icon = nautilus_icon_info_new_for_pixbuf (pixbuf, scale);
        } else if (file->details->thumbnail_path == NULL &&
                   file->details->can_read &&
                   !file->details->is_thumbnailing &&