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

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

Index: chrome/browser/ui/views/infobars/translate_infobar_base.h
diff --git a/chrome/browser/ui/views/infobars/translate_infobar_base.h b/chrome/browser/ui/views/infobars/translate_infobar_base.h
index 04028b87226e614fc30e1e3009f21d9371ae2bdd..08104e7f872ae889e347384b254e2e7f163d34b4 100644
--- a/chrome/browser/ui/views/infobars/translate_infobar_base.h
+++ b/chrome/browser/ui/views/infobars/translate_infobar_base.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.
 
@@ -45,7 +45,7 @@ class TranslateInfoBarBase : public TranslateInfoBarView,
 
  private:
   // InfoBarView:
-  virtual void OnPaintBackground(gfx::Canvas* canvas) OVERRIDE;
+  virtual void OnPaintBackground(gfx::CanvasSkia* canvas) OVERRIDE;
   virtual void AnimationProgressed(const ui::Animation* animation) OVERRIDE;
 
   // Returns the background that should be displayed when not animating.
@@ -53,7 +53,7 @@ class TranslateInfoBarBase : public TranslateInfoBarView,
 
   // Paints |background| to |canvas| with the opacity level based on
   // |animation_value|.
-  void FadeBackground(gfx::Canvas* canvas,
+  void FadeBackground(gfx::CanvasSkia* canvas,
                       double animation_value,
                       const views::Background& background);