iwyu: Use callback_old.h where appropriate, part 2.

content/renderer/transport_texture_host.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.
 
 // Transport texture is a mechanism to share a texture between renderer process
 // and GPU process. This is useful when a texture is used in the renderer
 // process but updated in the GPU process.
 //
 // BACKGROUND INFORMATION
 //
@@ skipping 75 matching lines @@
 //                           NewRunnableFunction(&TextureCreateDone),
 //                           textures);
 // }
 
 #ifndef CONTENT_RENDERER_TRANSPORT_TEXTURE_HOST_H_
 #define CONTENT_RENDERER_TRANSPORT_TEXTURE_HOST_H_
 
 #include <vector>
 
 #include "base/basictypes.h"
-#include "base/callback.h"
+#include "base/callback_old.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/task.h"
 #include "ipc/ipc_channel.h"
 
 class MessageLoop;
 class RendererGLContext;
 class TransportTextureService;
 
 class TransportTextureHost
@@ skipping 81 matching lines @@
   // A list of textures generated.
   std::vector<int> textures_;
 
   // Callback when a texture is updated.
   scoped_ptr<TextureUpdateCallback> update_callback_;
 
   DISALLOW_COPY_AND_ASSIGN(TransportTextureHost);
 };
 
 #endif  // CONTENT_RENDERER_TRANSPORT_TEXTURE_HOST_H_