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

chrome/browser/ui/views/infobars/infobar_background.h

Index: chrome/browser/ui/views/infobars/infobar_background.h
diff --git a/chrome/browser/ui/views/infobars/infobar_background.h b/chrome/browser/ui/views/infobars/infobar_background.h
index c2fa1cc523eeb8df1aaad2eb110637503e3b1bb5..84f118eb4ead0839856d7b8e08e345ae9ba8da73 100644
--- a/chrome/browser/ui/views/infobars/infobar_background.h
+++ b/chrome/browser/ui/views/infobars/infobar_background.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// 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.
 
@@ -19,7 +19,7 @@ class InfoBarBackground : public views::Background {
 
  private:
   // views::Background:
-  virtual void Paint(gfx::Canvas* canvas, views::View* view) const OVERRIDE;
+  virtual void Paint(gfx::CanvasSkia* canvas, views::View* view) const OVERRIDE;
 
   SkColor separator_color_;
   SkColor top_color_;