It is time.

ui/ozone/public/surface_ozone_canvas.h

-// Copyright 2014 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_OZONE_PUBLIC_SURFACE_OZONE_CANVAS_H_
-#define UI_OZONE_PUBLIC_SURFACE_OZONE_CANVAS_H_
-
-#include "base/basictypes.h"
-#include "base/memory/scoped_ptr.h"
-#include "skia/ext/refptr.h"
-#include "ui/ozone/ozone_base_export.h"
-
-class SkCanvas;
-
-namespace gfx {
-class Size;
-class VSyncProvider;
-}
-
-namespace ui {
-
-// The platform-specific part of an software output. The class is intended
-// for use when no EGL/GLES2 acceleration is possible.
-// This class owns any bits that the ozone implementation needs freed when
-// the software output is destroyed.
-class OZONE_BASE_EXPORT SurfaceOzoneCanvas {
- public:
-  virtual ~SurfaceOzoneCanvas() {}
-
-  // Returns an SkCanvas for drawing on the window.
-  virtual skia::RefPtr<SkCanvas> GetCanvas() = 0;
-
-  // Attempts to resize the canvas to match the viewport size. After
-  // resizing, the compositor must call GetCanvas() to get the next
-  // canvas - this invalidates any previous canvas from GetCanvas().
-  virtual void ResizeCanvas(const gfx::Size& viewport_size) = 0;
-
-  // Present the current canvas. After presenting, the compositor must
-  // call GetCanvas() to get the next canvas - this invalidates any
-  // previous canvas from GetCanvas().
-  //
-  // The implementation may assume that any pixels outside the damage
-  // rectangle are unchanged since the previous call to PresentCanvas().
-  virtual void PresentCanvas(const gfx::Rect& damage) = 0;
-
-  // Returns a gfx::VsyncProvider for this surface. Note that this may be
-  // called after we have entered the sandbox so if there are operations (e.g.
-  // opening a file descriptor providing vsync events) that must be done
-  // outside of the sandbox, they must have been completed in
-  // InitializeHardware. Returns an empty scoped_ptr on error.
-  virtual scoped_ptr<gfx::VSyncProvider> CreateVSyncProvider() = 0;
-};
-
-}  // namespace ui
-
-#endif  // UI_OZONE_PUBLIC_SURFACE_OZONE_CANVAS_H_