Making ShowExtensionInstallDialog a callback

chrome/browser/ui/gtk/extensions/extension_install_dialog_gtk.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 <gtk/gtk.h>
 
 #include "base/i18n/rtl.h"
 #include "base/string_util.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/extensions/bundle_installer.h"
-#include "chrome/browser/extensions/extension_install_dialog.h"
+#include "chrome/browser/extensions/extension_install_prompt.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/gtk/browser_window_gtk.h"
 #include "chrome/browser/ui/gtk/gtk_chrome_link_button.h"
 #include "chrome/browser/ui/gtk/gtk_util.h"
 #include "chrome/common/extensions/extension.h"
 #include "content/public/browser/page_navigator.h"
 #include "grit/generated_resources.h"
 #include "skia/ext/image_operations.h"
 #include "ui/base/gtk/gtk_hig_constants.h"
 #include "ui/base/l10n/l10n_util.h"
@@ skipping 354 matching lines @@
   gtk_util::SetLabelWidth(label, label_pixel_width);
   if (arrow)
     gtk_box_pack_start(GTK_BOX(header), arrow, FALSE, FALSE, 0);
   gtk_box_pack_start(GTK_BOX(header), label, TRUE, TRUE, 0);
 
   return box;
 }
 
 }  // namespace browser
 
+namespace {
+
 void ShowExtensionInstallDialogImpl(
     gfx::NativeWindow parent,
     content::PageNavigator* navigator,
     ExtensionInstallPrompt::Delegate* delegate,
     const ExtensionInstallPrompt::Prompt& prompt) {
   new browser::ExtensionInstallDialog(parent, navigator, delegate, prompt);
 }
+
+}  // namespace
+
+// static
+ExtensionInstallPrompt::ShowDialogCallback
+ExtensionInstallPrompt::GetDefaultShowDialogCallback() {
+  return base::Bind(&ShowExtensionInstallDialogImpl);
+}