[mutter] frames.c: Merge clear_backing() function into its only user

[Benjamin Otte <otte src gnome org>]

commit d212be799a41f43adf8c7dead84975fbf5630d3c
Author: Benjamin Otte <otte redhat com>
Date:   Thu Sep 23 18:49:00 2010 +0200

    frames.c: Merge clear_backing() function into its only user
    
    Avoids creating a cairo_t twice. And without the code to create a
    cairo_t, there was not a lot left to warrant a separate function.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=630203

 src/ui/frames.c |   19 +++----------------
 1 files changed, 3 insertions(+), 16 deletions(-)
---
diff --git a/src/ui/frames.c b/src/ui/frames.c
index 2fdbbf8..ee90541 100644
--- a/src/ui/frames.c
+++ b/src/ui/frames.c
@@ -2081,20 +2081,6 @@ setup_bg_cr (cairo_t *cr, GdkWindow *window, int x_offset, int y_offset)
     }
 }
 
-static void
-clear_backing (GdkPixmap *pixmap,
-               GdkWindow *window,
-               int xoffset, int yoffset)
-{
-  cairo_t *cr = gdk_cairo_create (pixmap);
-
-  setup_bg_cr (cr, window, xoffset, yoffset);
-
-  cairo_paint (cr);
-  
-  cairo_destroy (cr);
-}
-
 /* Returns a pixmap with a piece of the windows frame painted on it.
 */
 
@@ -2113,10 +2099,11 @@ generate_pixmap (MetaFrames *frames,
   result = gdk_pixmap_new (frame->window,
                            rect->width, rect->height, -1);
   
-  clear_backing (result, frame->window, rect->x, rect->y);
-
   cr = meta_cairo_create (result);
 
+  setup_bg_cr (cr, frame->window, rect->x, rect->y);
+  cairo_paint (cr);
+
   meta_frames_paint (frames, frame, cr, -rect->x, -rect->y);
 
   cairo_destroy (cr);