Add the UI compositor to the Mac build

content/browser/aura/software_output_device_win.h

-// Copyright 2013 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_AURA_SOFTWARE_OUTPUT_DEVICE_WIN_H_
-#define CONTENT_BROWSER_AURA_SOFTWARE_OUTPUT_DEVICE_WIN_H_
-
-#include "base/memory/scoped_ptr.h"
-#include "cc/output/software_output_device.h"
-
-#include <windows.h>
-
-namespace gfx {
-class Canvas;
-}
-
-namespace ui {
-class Compositor;
-}
-
-namespace content {
-
-class SoftwareOutputDeviceWin : public cc::SoftwareOutputDevice {
- public:
-  explicit SoftwareOutputDeviceWin(ui::Compositor* compositor);
-  virtual ~SoftwareOutputDeviceWin();
-
-  virtual void Resize(gfx::Size viewport_size) OVERRIDE;
-  virtual SkCanvas* BeginPaint(const gfx::Rect& damage_rect) OVERRIDE;
-  virtual void EndPaint(cc::SoftwareFrameData* frame_data) OVERRIDE;
-  virtual void CopyToBitmap(const gfx::Rect& rect, SkBitmap* output) OVERRIDE;
-
- private:
-  HWND hwnd_;
-  BITMAPINFO bitmap_info_;
-  scoped_ptr<gfx::Canvas> contents_;
-  bool is_hwnd_composited_;
-};
-
-}  // namespace content
-
-#endif  // CONTENT_BROWSER_AURA_SOFTWARE_OUTPUT_DEVICE_WIN_H_