Make HWNDMessageHandler subclass WindowImpl.

chrome/browser/ui/views/frame/browser_frame_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 CHROME_BROWSER_UI_VIEWS_FRAME_BROWSER_FRAME_WIN_H_
 #define CHROME_BROWSER_UI_VIEWS_FRAME_BROWSER_FRAME_WIN_H_
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "chrome/browser/ui/views/frame/browser_frame.h"
@@ skipping 57 matching lines @@
   virtual views::NativeWidget* AsNativeWidget() OVERRIDE;
   virtual const views::NativeWidget* AsNativeWidget() const OVERRIDE;
   virtual void InitSystemContextMenu() OVERRIDE;
   virtual int GetMinimizeButtonOffset() const OVERRIDE;
   virtual void TabStripDisplayModeChanged() OVERRIDE;
 
   // Overriden from views::ImageButton override:
   virtual void ButtonPressed(views::Button* sender,
                              const ui::Event& event) OVERRIDE;
 
-  // Overridden from WindowImpl:
-  virtual LRESULT OnWndProc(UINT message,
-                            WPARAM w_param,
-                            LPARAM l_param) OVERRIDE;
-
  private:
   // Updates the DWM with the frame bounds.
   void UpdateDWMFrame();
 
   // Builds the correct menu for when we have minimal chrome.
   void BuildSystemMenuForBrowserWindow();
   void BuildSystemMenuForAppOrPopupWindow();
 
   // Adds optional debug items for frame type toggling.
   void AddFrameToggleItems();
@@ skipping 29 matching lines @@
   // The wrapped system menu itself.
   scoped_ptr<views::NativeMenuWin> system_menu_;
 
   // See CacheMinimizeButtonDelta() for details about this member.
   int cached_minimize_button_x_delta_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserFrameWin);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_FRAME_BROWSER_FRAME_WIN_H_