ui/gfx: Remove the deprecated "operator const GdkPixbuf*" from Image API.

chrome/browser/ui/gtk/about_chrome_dialog.cc

 // Copyright (c) 2012 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/about_chrome_dialog.h"
 
 #include <gtk/gtk.h>
 
 #include <string>
 #include <vector>
@@ skipping 86 matching lines @@
   gdk_cairo_rectangle(cr, &expose->area);
   cairo_fill(cr);
   cairo_destroy(cr);
   return FALSE;
 }
 
 }  // namespace
 
 void ShowAboutDialogForProfile(GtkWindow* parent, Profile* profile) {
   ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance();
-  static GdkPixbuf* background = rb.GetNativeImageNamed(IDR_ABOUT_BACKGROUND);
+  static GdkPixbuf* background = rb.GetNativeImageNamed(
+      IDR_ABOUT_BACKGROUND).ToGdkPixbuf();
 
   // Build the dialog.
   GtkWidget* dialog = gtk_dialog_new_with_buttons(
       l10n_util::GetStringUTF8(IDS_ABOUT_CHROME_TITLE).c_str(),
       parent,
       GTK_DIALOG_MODAL,
       NULL);
   // Pick up the style set in gtk_util.cc:InitRCStyles().
   // The layout of this dialog is special because the logo should be flush
   // with the edges of the window.
@@ skipping 157 matching lines @@
       ui::kContentAreaBorder, 0,
       ui::kContentAreaBorder, ui::kContentAreaBorder);
   gtk_container_add(GTK_CONTAINER(alignment), vbox);
   gtk_box_pack_start(GTK_BOX(content_area), alignment, FALSE, FALSE, 0);
 
   g_signal_connect(dialog, "response", G_CALLBACK(OnResponse), NULL);
   gtk_window_set_resizable(GTK_WINDOW(dialog), FALSE);
   gtk_widget_show_all(dialog);
   gtk_widget_grab_focus(close_button);
 }