iwyu: Use callback_old.h where appropriate, part 1.

content/browser/renderer_host/render_view_host_notification_task.h

 // Copyright (c) 2010 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.
 
 // This file defines utility functions for sending notifications (calling
 // methods that return void and do not have out params) to the RenderViewHost
 // or one of its delegate interfaces.  The notifications are dispatched
 // asynchronously, and only if the specified RenderViewHost still exists.
 
 #ifndef CONTENT_BROWSER_RENDERER_HOST_RENDER_VIEW_HOST_NOTIFICATION_TASK_H_
 #define CONTENT_BROWSER_RENDERER_HOST_RENDER_VIEW_HOST_NOTIFICATION_TASK_H_
 #pragma once
 
-#include "base/callback.h"
+#include "base/callback_old.h"
 #include "base/task.h"
 #include "content/browser/browser_thread.h"
 #include "content/browser/renderer_host/render_view_host.h"
 #include "content/browser/renderer_host/render_view_host_delegate.h"
 
 // ----------------------------------------------------------------------------
 
 namespace internal {
 
 // The simplest Mapper, used when proxying calls to a RenderViewHost.
@@ skipping 303 matching lines @@
   internal::CallRenderViewHostSSLDelegateHelper(
       render_process_id,
       render_view_id,
       method,
       MakeTuple(a, b));
 }
 
 // ----------------------------------------------------------------------------
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_VIEW_HOST_NOTIFICATION_TASK_H_