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

chrome/browser/ui/views/tabs/native_view_photobooth.h

Index: chrome/browser/ui/views/tabs/native_view_photobooth.h
diff --git a/chrome/browser/ui/views/tabs/native_view_photobooth.h b/chrome/browser/ui/views/tabs/native_view_photobooth.h
index 7091b408c2296fa2932b3960dd95a5ced980392a..353e2c7b787d61089099898b2a983fc01a771207 100644
--- a/chrome/browser/ui/views/tabs/native_view_photobooth.h
+++ b/chrome/browser/ui/views/tabs/native_view_photobooth.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2006-2008 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.
 
@@ -10,7 +10,7 @@
 #include "ui/gfx/native_widget_types.h"
 
 namespace gfx {
-class Canvas;
+class CanvasSkia;
 class Rect;
 }
 ///////////////////////////////////////////////////////////////////////////////
@@ -38,7 +38,7 @@ class NativeViewPhotobooth {
 
   // Paints the current display image of the window into |canvas|, clipped to
   // |target_bounds|.
-  virtual void PaintScreenshotIntoCanvas(gfx::Canvas* canvas,
+  virtual void PaintScreenshotIntoCanvas(gfx::CanvasSkia* canvas,
                                          const gfx::Rect& target_bounds) = 0;
 };