ui/gfx: Make gfx::Canvas inherit from gfx::CanvasSkia.

chrome/browser/ui/views/download/download_shelf_view.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 CHROME_BROWSER_UI_VIEWS_DOWNLOAD_DOWNLOAD_SHELF_VIEW_H_
 #define CHROME_BROWSER_UI_VIEWS_DOWNLOAD_DOWNLOAD_SHELF_VIEW_H_
 #pragma once
 
 #include <vector>
 
@@ skipping 37 matching lines @@
 
   // Sent from the DownloadItemView when the user opens an item.
   void OpenedDownload(DownloadItemView* view);
 
   // Implementation of View.
   virtual gfx::Size GetPreferredSize() OVERRIDE;
   virtual void Layout() OVERRIDE;
   virtual void ViewHierarchyChanged(bool is_add,
                                     View* parent,
                                     View* child) OVERRIDE;
-  virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE;
+  virtual void OnPaint(gfx::CanvasSkia* canvas) OVERRIDE;
 
   // Implementation of ui::AnimationDelegate.
   virtual void AnimationProgressed(const ui::Animation* animation) OVERRIDE;
   virtual void AnimationEnded(const ui::Animation* animation) OVERRIDE;
 
   // Implementation of views::LinkListener.
   // Invoked when the user clicks the 'show all downloads' link button.
   virtual void LinkClicked(views::Link* source, int event_flags) OVERRIDE;
 
   // Implementation of ButtonListener.
@@ skipping 29 matching lines @@
   // From AccessiblePaneView
   virtual views::View* GetDefaultFocusableChild() OVERRIDE;
 
  private:
   // Adds a View representing a download to this DownloadShelfView.
   // DownloadShelfView takes ownership of the View, and will delete it as
   // necessary.
   void AddDownloadView(DownloadItemView* view);
 
   // Paints the border.
-  virtual void OnPaintBorder(gfx::Canvas* canvas) OVERRIDE;
+  virtual void OnPaintBorder(gfx::CanvasSkia* canvas) OVERRIDE;
 
   // Returns true if the shelf is wide enough to show the first download item.
   bool CanFitFirstDownloadItem();
 
   // Called on theme change.
   void UpdateButtonColors();
 
   // Overridden from views::View.
   virtual void OnThemeChanged() OVERRIDE;
 
@@ skipping 42 matching lines @@
 
   // Whether we are auto-closing.
   bool auto_closed_;
 
   views::MouseWatcher mouse_watcher_;
 
   DISALLOW_COPY_AND_ASSIGN(DownloadShelfView);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_DOWNLOAD_DOWNLOAD_SHELF_VIEW_H_