GTK: A bunch more removal of deprecated raw GtkWidget access, focusing on GtkWidget->window

chrome/browser/ui/gtk/gtk_custom_menu_item.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/gtk_custom_menu_item.h"
 
 #include "base/i18n/rtl.h"
 #include "chrome/browser/ui/gtk/gtk_custom_menu.h"
 #include "ui/base/gtk/gtk_compat.h"
 
@@ skipping 243 matching lines @@
       // Check to see if this is the last button in a run.
       GList* next_item = g_list_next(current_item);
       if (next_item && GTK_IS_BUTTON(next_item->data)) {
         GtkWidget* current_button = GTK_WIDGET(current_item->data);
         GtkAllocation button_allocation;
         gtk_widget_get_allocation(current_button, &button_allocation);
         GtkAllocation child_alloc;
         gtk_widget_get_allocation(gtk_bin_get_child(GTK_BIN(current_button)),
                                   &child_alloc);
         int half_offset = widget->style->xthickness / 2;
-        gtk_paint_vline(widget->style, widget->window,
+        gtk_paint_vline(gtk_widget_get_style(widget),
+                        gtk_widget_get_window(widget),
                         gtk_widget_get_state(current_button),
                         &event->area, widget, "button",
                         child_alloc.y,
                         child_alloc.y + child_alloc.height,
                         button_allocation.x +
                         button_allocation.width - half_offset);
       }
     }
   }
 
@@ skipping 205 matching lines @@
                                          gpointer callback_data) {
   // Even though we're filtering |all_widgets| on GTK_IS_BUTTON(), this isn't
   // equivalent to |button_widgets| because we also want the button-labels.
   for (GList* i = menu_item->all_widgets; i && GTK_IS_BUTTON(i->data);
        i = g_list_next(i)) {
     if (GTK_IS_BUTTON(i->data)) {
       callback(GTK_WIDGET(i->data), callback_data);
     }
   }
 }