Use callback_forward.h instead of callback.h where possible.

chrome/browser/automation/ui_controls.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.
 
 #ifndef CHROME_BROWSER_AUTOMATION_UI_CONTROLS_H_
 #define CHROME_BROWSER_AUTOMATION_UI_CONTROLS_H_
 #pragma once
 
 #include "build/build_config.h"
 
 #if defined(OS_WIN)
 #include <wtypes.h>
 #endif
 
-#include "base/callback.h"
+#include "base/callback_forward.h"
 #include "ui/base/keycodes/keyboard_codes.h"
 #include "ui/gfx/native_widget_types.h"
 #include "ui/gfx/point.h"
 
 #if defined(TOOLKIT_VIEWS)
 namespace views {
 class View;
 }
 #endif
 
@@ skipping 67 matching lines @@
 #elif defined(OS_MACOSX)
     NSView* view,
 #endif
     MouseButton button,
     int state,
     const base::Closure& task);
 
 }  // ui_controls
 
 #endif  // CHROME_BROWSER_AUTOMATION_UI_CONTROLS_H_