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

chrome/browser/download/download_util.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.
 //
 // Download utilities.
 
 #ifndef CHROME_BROWSER_DOWNLOAD_DOWNLOAD_UTIL_H_
 #define CHROME_BROWSER_DOWNLOAD_DOWNLOAD_UTIL_H_
 #pragma once
 
@@ skipping 13 matching lines @@
 
 namespace base {
 class DictionaryValue;
 }
 
 namespace content {
 class DownloadItem;
 }
 
 namespace gfx {
-class Canvas;
+class CanvasSkia;
 class Image;
 }
 
 namespace download_util {
 
 // Download temporary file creation --------------------------------------------
 
 // Return the default download directory.
 const FilePath& GetDefaultDownloadDirectory();
 
@@ skipping 46 matching lines @@
 
 // Paint the common download animation progress foreground and background,
 // clipping the foreground to 'percent' full. If percent is -1, then we don't
 // know the total size, so we just draw a rotating segment until we're done.
 //
 // |containing_view| is the View subclass within which the progress animation
 // is drawn (generally either DownloadItemTabView or DownloadItemView). We
 // require the containing View in addition to the canvas because if we are
 // drawing in a right-to-left locale, we need to mirror the position of the
 // progress animation within the containing View.
-void PaintDownloadProgress(gfx::Canvas* canvas,
+void PaintDownloadProgress(gfx::CanvasSkia* canvas,
 #if defined(TOOLKIT_VIEWS)
                            views::View* containing_view,
 #endif
                            int origin_x,
                            int origin_y,
                            int start_angle,
                            int percent,
                            PaintDownloadProgressSize size);
 
-void PaintDownloadComplete(gfx::Canvas* canvas,
+void PaintDownloadComplete(gfx::CanvasSkia* canvas,
 #if defined(TOOLKIT_VIEWS)
                            views::View* containing_view,
 #endif
                            int origin_x,
                            int origin_y,
                            double animation_progress,
                            PaintDownloadProgressSize size);
 
-void PaintDownloadInterrupted(gfx::Canvas* canvas,
+void PaintDownloadInterrupted(gfx::CanvasSkia* canvas,
 #if defined(TOOLKIT_VIEWS)
                               views::View* containing_view,
 #endif
                               int origin_x,
                               int origin_y,
                               double animation_progress,
                               PaintDownloadProgressSize size);
 
 // Drag support ----------------------------------------------------------------
 
@@ skipping 80 matching lines @@
 
 // Increment one of the above counts.
 void RecordDownloadCount(ChromeDownloadCountTypes type);
 
 // Record initiation of a download from a specific source.
 void RecordDownloadSource(ChromeDownloadSource source);
 
 }  // namespace download_util
 
 #endif  // CHROME_BROWSER_DOWNLOAD_DOWNLOAD_UTIL_H_