stroke: Make gsk_stroke_to_cairo public

It comes in handy, and does no harm.

gsk/gskstroke.c

@@ -96,6 +96,14 @@ gsk_stroke_free (GskStroke *self)
   g_free (self);
 }
 
+/**
+ * gsk_stroke_to_cairo:
+ * @self: a #GskStroke
+ * @cr: the cairo context to configure
+ *
+ * A helper function that sets the stroke parameters
+ * of @cr from the values found in @self.
+ */
 void
 gsk_stroke_to_cairo (const GskStroke *self,
                      cairo_t         *cr)

gsk/gskstroke.h

@@ -80,6 +80,10 @@ void                    gsk_stroke_set_dash_offset              (GskStroke
 GDK_AVAILABLE_IN_ALL
 float                   gsk_stroke_get_dash_offset              (const GskStroke        *self);
 
+GDK_AVAILABLE_IN_ALL
+void                    gsk_stroke_to_cairo                     (const GskStroke        *self,
+                                                                 cairo_t                *cr);
+
 
 
 G_END_DECLS

gsk/gskstrokeprivate.h

@@ -54,9 +54,6 @@ gsk_stroke_clear (GskStroke *stroke)
   stroke->n_dash = 0; /* better safe than sorry */
 }
 
-void                    gsk_stroke_to_cairo                     (const GskStroke        *self,
-                                                                 cairo_t                *cr);
-
 G_END_DECLS
 
 #endif /* __GSK_STROKE_PRIVATE_H__ */