GTK: Another GTK deprecation patch.

chrome/browser/ui/gtk/rounded_window.cc

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ui/gtk/rounded_window.h"
 
 #include <gtk/gtk.h>
 #include <math.h>
 
 #include "base/i18n/rtl.h"
@@ skipping 274 matching lines @@
                          data, FreeRoundedWindowData);
 
   if (gtk_widget_get_visible(widget))
     gtk_widget_queue_draw(widget);
 }
 
 void StopActingAsRoundedWindow(GtkWidget* widget) {
   g_object_set_data(G_OBJECT(widget), kRoundedData, NULL);
 
   if (gtk_widget_get_realized(widget))
-    gdk_window_shape_combine_mask(widget->window, NULL, 0, 0);
+    gdk_window_shape_combine_mask(gtk_widget_get_window(widget), NULL, 0, 0);
 
   if (gtk_widget_get_visible(widget))
     gtk_widget_queue_draw(widget);
 }
 
 bool IsActingAsRoundedWindow(GtkWidget* widget) {
   return g_object_get_data(G_OBJECT(widget), kRoundedData) != NULL;
 }
 
 void SetRoundedWindowEdgesAndBorders(GtkWidget* widget,
@@ skipping 11 matching lines @@
 
 void SetRoundedWindowBorderColor(GtkWidget* widget, GdkColor color) {
   DCHECK(widget);
   RoundedWindowData* data = static_cast<RoundedWindowData*>(
       g_object_get_data(G_OBJECT(widget), kRoundedData));
   DCHECK(data);
   data->border_color = color;
 }
 
 }  // namespace gtk_util