Adds code for a new Aura shell.

ui/aura_shell/desktop_background_view.h

+// Copyright (c) 2011 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 UI_AURA_SHELL_DESKTOP_BACKGROUND_VIEW_H_
+#define UI_AURA_SHELL_DESKTOP_BACKGROUND_VIEW_H_
+#pragma once
+
+#include "views/view.h"
+#include "views/widget/widget_delegate.h"
+#include "third_party/skia/include/core/SkBitmap.h"
+
+class DesktopBackgroundView : public views::WidgetDelegateView {
+ public:
+  DesktopBackgroundView();
+  virtual ~DesktopBackgroundView();
+
+ private:
+  // Overridden from views::View:
+  virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE;
+  virtual void OnBoundsChanged(const gfx::Rect& previous_bounds) OVERRIDE;
+
+  SkBitmap wallpaper_;
+
+  DISALLOW_COPY_AND_ASSIGN(DesktopBackgroundView);
+};
+
+#endif  // UI_AURA_SHELL_DESKTOP_BACKGROUND_VIEW_H_