Set up new desktop classes.

ui/views/win/hwnd_message_handler_delegate.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_VIEWS_WIN_HWND_MESSAGE_HANDLER_DELEGATE_H_
 #define UI_VIEWS_WIN_HWND_MESSAGE_HANDLER_DELEGATE_H_
 
 #include "ui/views/views_export.h"
 
 namespace gfx {
+class Canvas;
 class Insets;
 class Path;
 class Point;
 class Size;
 }
 
+namespace ui {
+class Accelerator;
+class KeyEvent;
+class MouseEvent;
+}
+
 namespace views {
 
 class InputMethod;
 class NativeWidgetWin;
 
 // Implemented by the object that uses the HWNDMessageHandler to handle
 // notifications from the underlying HWND and service requests for data.
 class VIEWS_EXPORT HWNDMessageHandlerDelegate {
  public:
   virtual bool IsWidgetWindow() const = 0;
@@ skipping 186 matching lines @@
                              WPARAM w_param,
                              LPARAM l_param) = 0;
 
  protected:
   virtual ~HWNDMessageHandlerDelegate() {}
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_WIN_HWND_MESSAGE_HANDLER_DELEGATE_H_