Remove dependency on PrefChangeRegistrar and renderer_preferences_util from content.

chrome/browser/tab_contents/chrome_interstitial_page.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/tab_contents/chrome_interstitial_page.h"
 
 #include "chrome/browser/dom_operation_notification_details.h"
+#include "chrome/browser/renderer_preferences_util.h"
+#include "content/browser/tab_contents/tab_contents.h"
 #include "content/common/notification_service.h"
 #include "content/common/notification_source.h"
 
 ChromeInterstitialPage::ChromeInterstitialPage(TabContents* tab,
                                                bool new_navigation,
                                                const GURL& url)
     : InterstitialPage(tab, new_navigation, url) {
+  RendererPreferences prefs;
+  renderer_preferences_util::UpdateFromSystemSettings(
+      &prefs, tab->profile());
+  set_renderer_preferences(prefs);
 }
 
 ChromeInterstitialPage::~ChromeInterstitialPage() {
 }
 
 void ChromeInterstitialPage::Show() {
   InterstitialPage::Show();
 
   notification_registrar_.Add(this, NotificationType::DOM_OPERATION_RESPONSE,
       Source<RenderViewHost>(render_view_host()));
 }
 
 void ChromeInterstitialPage::Observe(NotificationType type,
                                      const NotificationSource& source,
                                      const NotificationDetails& details) {
   if (NotificationType::DOM_OPERATION_RESPONSE == type.value) {
     if (enabled()) {
       Details<DomOperationNotificationDetails> dom_op_details(details);
       CommandReceived(dom_op_details->json());
     }
     return;
   }
   InterstitialPage::Observe(type, source, details);
 }