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

ui/gfx/surface/accelerated_surface_win.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 UI_GFX_SURFACE_ACCELERATED_SURFACE_WIN_H_
 #define UI_GFX_SURFACE_ACCELERATED_SURFACE_WIN_H_
 #pragma once
 
 #include <d3d9.h>
 
-#include "base/callback.h"
+#include "base/callback_forward.h"
 #include "base/memory/ref_counted.h"
 #include "base/message_loop_proxy.h"
 #include "base/synchronization/lock.h"
 #include "base/win/scoped_comptr.h"
 #include "ui/gfx/native_widget_types.h"
 #include "ui/gfx/size.h"
 #include "ui/gfx/surface/surface_export.h"
 
 class SURFACE_EXPORT AcceleratedSurface
     : public base::RefCountedThreadSafe<AcceleratedSurface> {
  public:
   explicit AcceleratedSurface(gfx::NativeWindow parent);
   ~AcceleratedSurface();
 
   void Initialize();
   void Destroy();
 
   // Schedule a frame to be presented. The completion callback will be invoked
   // when it is safe to write to the surface on another thread. The lock for
   // this surface will be held while the completion callback runs.
   void AsyncPresentAndAcknowledge(const gfx::Size& size,
                                   int64 surface_id,
-                                  base::Closure completion_task);
+                                  const base::Closure& completion_task);
 
   // Synchronously present a frame with no acknowledgement.
   void Present();
 
  private:
   void DoInitialize();
   void QueriesDestroyed();
   void DoDestroy();
   void DoResize(const gfx::Size& size);
   void DoPresentAndAcknowledge(const gfx::Size& size,
                                int64 surface_id,
-                               base::Closure completion_task);
+                               const base::Closure& completion_task);
 
   // Immutable and accessible from any thread without the lock.
   const int thread_affinity_;
   const gfx::NativeWindow window_;
 
   // The size of the swap chain once any pending resizes have been processed.
   // Only accessed on the UI thread so the lock is unnecessary.
   gfx::Size pending_size_;
 
   // The number of pending resizes. This is accessed with atomic operations so
@@ skipping 12 matching lines @@
   // texture again.
   base::win::ScopedComPtr<IDirect3DQuery9> query_;
 
   // The current size of the swap chain.
   gfx::Size size_;
 
   DISALLOW_COPY_AND_ASSIGN(AcceleratedSurface);
 };
 
 #endif  // UI_GFX_SURFACE_ACCELERATED_SURFACE_WIN_H_