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

chrome/browser/download/download_util.h

Index: chrome/browser/download/download_util.h
diff --git a/chrome/browser/download/download_util.h b/chrome/browser/download/download_util.h
index 8bd4f21da1626dbd43fabc806b616c31c5b38fbd..7a31af8649195ee0f29fc85d376998e2e2a6b70a 100644
--- a/chrome/browser/download/download_util.h
+++ b/chrome/browser/download/download_util.h
@@ -31,7 +31,7 @@ class DownloadItem;
 }
 
 namespace gfx {
-class Canvas;
+class CanvasSkia;
 class Image;
 }
 
@@ -98,7 +98,7 @@ enum PaintDownloadProgressSize {
 // 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
@@ -108,7 +108,7 @@ void PaintDownloadProgress(gfx::Canvas* canvas,
                            int percent,
                            PaintDownloadProgressSize size);
 
-void PaintDownloadComplete(gfx::Canvas* canvas,
+void PaintDownloadComplete(gfx::CanvasSkia* canvas,
 #if defined(TOOLKIT_VIEWS)
                            views::View* containing_view,
 #endif
@@ -117,7 +117,7 @@ void PaintDownloadComplete(gfx::Canvas* canvas,
                            double animation_progress,
                            PaintDownloadProgressSize size);
 
-void PaintDownloadInterrupted(gfx::Canvas* canvas,
+void PaintDownloadInterrupted(gfx::CanvasSkia* canvas,
 #if defined(TOOLKIT_VIEWS)
                               views::View* containing_view,
 #endif