beginnings of metro viewer process

ui/viewer/viewer_host_win.h

+// 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.
+
+#ifndef UI_VIEWER_VIEWER_HOST_WIN_H_
+#define UI_VIEWER_VIEWER_HOST_WIN_H_
+
+#include "base/memory/scoped_ptr.h"
+
+class ViewerStackingClient;
+
+namespace aura {
+class FocusManager;
+class RootWindow;
+
+namespace shared {
+class RootWindowCaptureClient;
+}
+
+}
+
+class ViewerHostWin {
+ public:
+  ViewerHostWin();
+  virtual ~ViewerHostWin();
+
+ private:
+  scoped_ptr<aura::RootWindow> root_window_;
+  scoped_ptr<aura::shared::RootWindowCaptureClient> root_window_capture_client_;
+  scoped_ptr<ViewerStackingClient> stacking_client_;
+  scoped_ptr<aura::FocusManager> focus_manager_;
+
+  DISALLOW_COPY_AND_ASSIGN(ViewerHostWin);
+};
+
+#endif  // UI_VIEWER_VIEWER_HOST_WIN_H_