Fix argb initialisation.

Fix clutter initialisation if argb visuals are enabled, setting a border
color on creating the dummy window. This should avoid BadMatch happening
when the depth of the root window visual is not the same of the depth
of the argb visual.

http://bugzilla.openedhand.com/show_bug.cgi?id=2011

Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>

clutter/glx/clutter-backend-glx.c

@@ -555,6 +555,7 @@ clutter_backend_glx_create_context (ClutterBackend  *backend,
                                     root_xwin,
                                     xvisinfo->visual,
                                     AllocNone);
+  attrs.border_pixel = 0;
 
   backend_glx->dummy_xwin = XCreateWindow (xdisplay, root_xwin,
                                            -100, -100, 1, 1,
@@ -562,7 +563,7 @@ clutter_backend_glx_create_context (ClutterBackend  *backend,
                                            xvisinfo->depth,
                                            CopyFromParent,
                                            xvisinfo->visual,
-                                           CWOverrideRedirect | CWColormap,
+                                           CWOverrideRedirect | CWColormap | CWBorderPixel,
                                            &attrs);
 
   /* Try and create a GLXWindow to use with extensions dependent on