Revert 50784 - Canvas refactoring part 3....

chrome/browser/views/list_background.h

 // Copyright (c) 2010 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.
 
 #ifndef CHROME_BROWSER_VIEWS_LIST_BACKGROUND_H_
 #define CHROME_BROWSER_VIEWS_LIST_BACKGROUND_H_
 
-#include "gfx/canvas_skia.h"
+#include "gfx/canvas.h"
 #include "gfx/native_theme_win.h"
 #include "views/background.h"
 
 // A background object that paints the scrollable list background,
 // which may be rendered by the system visual styles system.
 class ListBackground : public views::Background {
  public:
   explicit ListBackground() {
     SkColor list_color =
         gfx::NativeTheme::instance()->GetThemeColorWithDefault(
         gfx::NativeTheme::LIST, 1, TS_NORMAL, TMT_FILLCOLOR, COLOR_WINDOW);
     SetNativeControlColor(list_color);
   }
   virtual ~ListBackground() {}
 
   virtual void Paint(gfx::Canvas* canvas, views::View* view) const {
-    HDC dc = canvas->AsCanvasSkia()->beginPlatformPaint();
+    HDC dc = canvas->beginPlatformPaint();
     RECT native_lb = view->GetLocalBounds(true).ToRECT();
     gfx::NativeTheme::instance()->PaintListBackground(dc, true, &native_lb);
-    canvas->AsCanvasSkia()->endPlatformPaint();
+    canvas->endPlatformPaint();
   }
 
  private:
   DISALLOW_COPY_AND_ASSIGN(ListBackground);
 };
 
 #endif  // CHROME_BROWSER_VIEWS_LIST_BACKGROUND_H_