GTK: Even more cleanup to access allocation through the accessor.

ui/gfx/gtk_preserve_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 "ui/gfx/gtk_preserve_window.h"
 
 #include <gdk/gdk.h>
 #include <gtk/gtk.h>
 
 #include "ui/base/gtk/gtk_compat.h"
@@ skipping 60 matching lines @@
     widget->window = NULL;
   }
 
   GTK_OBJECT_CLASS(gtk_preserve_window_parent_class)->destroy(object);
 }
 
 static void gtk_preserve_window_realize(GtkWidget* widget) {
   g_return_if_fail(GTK_IS_PRESERVE_WINDOW(widget));
 
   if (widget->window) {
+    GtkAllocation allocation;
+    gtk_widget_get_allocation(widget, &allocation);
+
     gdk_window_reparent(widget->window,
                         gtk_widget_get_parent_window(widget),
-                        widget->allocation.x,
-                        widget->allocation.y);
+                        allocation.x,
+                        allocation.y);
     GtkPreserveWindowPrivate* priv = GTK_PRESERVE_WINDOW_GET_PRIVATE(widget);
     if (!priv->delegate_resize) {
-      gdk_window_resize(widget->window,
-                        widget->allocation.width,
-                        widget->allocation.height);
+      gdk_window_resize(gtk_widget_get_window(widget),
+                        allocation.width,
+                        allocation.height);
     }
     widget->style = gtk_style_attach(widget->style, widget->window);
     gtk_style_set_background(widget->style, widget->window, GTK_STATE_NORMAL);
 
     gint event_mask = gtk_widget_get_events(widget);
     event_mask |= GDK_EXPOSURE_MASK | GDK_BUTTON_PRESS_MASK;
     gdk_window_set_events(widget->window, (GdkEventMask) event_mask);
     gdk_window_set_user_data(widget->window, widget);
 
     // Deprecated as of GTK 2.22. Used for compatibility.
@@ skipping 118 matching lines @@
   }
 }
 
 void gtk_preserve_window_delegate_resize(GtkPreserveWindow* widget,
                                          gboolean delegate) {
   GtkPreserveWindowPrivate* priv = GTK_PRESERVE_WINDOW_GET_PRIVATE(widget);
   priv->delegate_resize = delegate;
 }
 
 G_END_DECLS