Remove dependency on PrefChangeRegistrar and renderer_preferences_util from content.

content/browser/renderer_host/render_view_host_delegate.h

 // 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.
 
 #ifndef CONTENT_BROWSER_RENDERER_HOST_RENDER_VIEW_HOST_DELEGATE_H_
 #define CONTENT_BROWSER_RENDERER_HOST_RENDER_VIEW_HOST_DELEGATE_H_
 #pragma once
 
 #include <string>
 #include <vector>
@@ skipping 356 matching lines @@
                                     const std::wstring& default_prompt,
                                     const GURL& frame_url,
                                     const int flags,
                                     IPC::Message* reply_msg,
                                     bool* did_suppress_message) {}
 
   virtual void RunBeforeUnloadConfirm(const RenderViewHost* rvh,
                                       const std::wstring& message,
                                       IPC::Message* reply_msg) {}
 
-  // |url| is assigned to a server that can provide alternate error pages.  If
-  // the returned URL is empty, the default error page built into WebKit will
-  // be used.
-  virtual GURL GetAlternateErrorPageURL() const;
-
   // Return a dummy RendererPreferences object that will be used by the renderer
   // associated with the owning RenderViewHost.
   virtual RendererPreferences GetRendererPrefs(Profile* profile) const = 0;
 
   // Returns a WebPreferences object that will be used by the renderer
   // associated with the owning render view host.
   virtual WebPreferences GetWebkitPrefs();
 
   // Notification the user has made a gesture while focus was on the
   // page. This is used to avoid uninitiated user downloads (aka carpet
@@ skipping 30 matching lines @@
   // Returns true if the delegate will take care of asking the user, otherwise
   // the caller will do the default behavior.
   bool RequestDesktopNotificationPermission(const GURL& source_origin,
                                             int callback_context);
 
  protected:
   virtual ~RenderViewHostDelegate() {}
 };
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_VIEW_HOST_DELEGATE_H_