It is time.

ui/views/window/frame_background.h

-// Copyright (c) 2012 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_VIEWS_WINDOW_FRAME_BACKGROUND_H_
-#define UI_VIEWS_WINDOW_FRAME_BACKGROUND_H_
-
-#include "base/basictypes.h"
-#include "third_party/skia/include/core/SkColor.h"
-#include "ui/views/views_export.h"
-
-namespace gfx {
-class Canvas;
-class ImageSkia;
-}
-
-namespace views {
-
-class View;
-
-// FrameBackground handles painting for all the various window frames we
-// support in Chrome. It intends to consolidate paint code that historically
-// was copied. One frame to rule them all!
-class VIEWS_EXPORT FrameBackground {
- public:
-  FrameBackground();
-  ~FrameBackground();
-
-  // Sets the color to draw under the frame images.
-  void set_frame_color(SkColor color) { frame_color_ = color; }
-
-  // Sets the theme image for the top of the window.  May be NULL.
-  // Memory is owned by the caller.
-  void set_theme_image(const gfx::ImageSkia* image) { theme_image_ = image; }
-
-  // Sets an image that overlays the top window image.  Usually used to add
-  // edge highlighting to provide the illusion of depth.  May be NULL.
-  // Memory is owned by the caller.
-  void set_theme_overlay_image(gfx::ImageSkia* image) {
-    theme_overlay_image_ = image;
-  }
-
-  // Sets the height of the top area to fill with the default frame color,
-  // which must extend behind the tab strip.
-  void set_top_area_height(int height) { top_area_height_ = height; }
-
-  // Vertical inset for theme image when drawing maximized.
-  void set_maximized_top_inset(int inset) { maximized_top_inset_ = inset; }
-
-  // Sets images used when drawing the sides of the frame.
-  // Caller owns the memory.
-  void SetSideImages(const gfx::ImageSkia* left,
-                     const gfx::ImageSkia* top,
-                     const gfx::ImageSkia* right,
-                     const gfx::ImageSkia* bottom);
-
-  // Sets images used when drawing the corners of the frame.
-  // Caller owns the memory.
-  void SetCornerImages(const gfx::ImageSkia* top_left,
-                       const gfx::ImageSkia* top_right,
-                       const gfx::ImageSkia* bottom_left,
-                       const gfx::ImageSkia* bottom_right);
-
-  // Paints the border for a standard, non-maximized window.  Also paints the
-  // background of the title bar area, since the top frame border and the
-  // title bar background are a contiguous component.
-  void PaintRestored(gfx::Canvas* canvas, View* view) const;
-
-  // Paints the border for a maximized window, which does not include the
-  // window edges.
-  void PaintMaximized(gfx::Canvas* canvas, View* view) const;
-
- private:
-  // Fills the frame area with the frame color.
-  void PaintFrameColor(gfx::Canvas* canvas, View* view) const;
-
-  SkColor frame_color_;
-  const gfx::ImageSkia* theme_image_;
-  gfx::ImageSkia* theme_overlay_image_;
-  int top_area_height_;
-
-  // Images for the sides of the frame.
-  const gfx::ImageSkia* left_edge_;
-  const gfx::ImageSkia* top_edge_;
-  const gfx::ImageSkia* right_edge_;
-  const gfx::ImageSkia* bottom_edge_;
-
-  // Images for the corners of the frame.
-  const gfx::ImageSkia* top_left_corner_;
-  const gfx::ImageSkia* top_right_corner_;
-  const gfx::ImageSkia* bottom_left_corner_;
-  const gfx::ImageSkia* bottom_right_corner_;
-
-  // Vertical inset for theme image when drawing maximized.
-  int maximized_top_inset_;
-
-  DISALLOW_COPY_AND_ASSIGN(FrameBackground);
-};
-
-}  // namespace views
-
-#endif  // UI_VIEWS_WINDOW_FRAME_BACKGROUND_H_