Add the UI compositor to the Mac build

content/browser/aura/software_output_device_ozone.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_OZONE_H_
-#define CONTENT_BROWSER_AURA_SOFTWARE_OUTPUT_DEVICE_OZONE_H_
-
-#include "cc/output/software_output_device.h"
-#include "content/common/content_export.h"
-#include "ui/gfx/native_widget_types.h"
-
-namespace ui {
-class Compositor;
-}
-
-namespace content {
-
-// Ozone implementation which relies on software rendering. Ozone will present
-// an accelerated widget as a SkCanvas. SoftwareOutputDevice will then use the
-// Ozone provided canvas to draw.
-class CONTENT_EXPORT SoftwareOutputDeviceOzone
-    : public cc::SoftwareOutputDevice {
- public:
-  explicit SoftwareOutputDeviceOzone(ui::Compositor* compositor);
-  virtual ~SoftwareOutputDeviceOzone();
-
-  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;
-
- private:
-  ui::Compositor* compositor_;
-
-  gfx::AcceleratedWidget realized_widget_;
-
-  DISALLOW_COPY_AND_ASSIGN(SoftwareOutputDeviceOzone);
-};
-
-}  // namespace content
-
-#endif  // CONTENT_BROWSER_AURA_SOFTWARE_OUTPUT_DEVICE_OZONE_H_