Custom frame UI for platform apps on Windows.

chrome/browser/ui/views/tab_contents/native_tab_contents_view_win.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 CHROME_BROWSER_UI_VIEWS_TAB_CONTENTS_NATIVE_TAB_CONTENTS_VIEW_WIN_H_
 #define CHROME_BROWSER_UI_VIEWS_TAB_CONTENTS_NATIVE_TAB_CONTENTS_VIEW_WIN_H_
 #pragma once
 
 #include "chrome/browser/ui/views/tab_contents/native_tab_contents_view.h"
 #include "ui/views/widget/native_widget_win.h"
@@ skipping 46 matching lines @@
   virtual LRESULT OnReflectedMessage(UINT msg,
                                      WPARAM w_param,
                                      LPARAM l_param) OVERRIDE;
   virtual void OnVScroll(int scroll_type,
                          short position,
                          HWND scrollbar) OVERRIDE;
   virtual void OnWindowPosChanged(WINDOWPOS* window_pos) OVERRIDE;
   virtual void OnSize(UINT param, const WTL::CSize& size) OVERRIDE;
   virtual LRESULT OnNCCalcSize(BOOL w_param, LPARAM l_param) OVERRIDE;
   virtual void OnNCPaint(HRGN rgn) OVERRIDE;
+  virtual LRESULT OnNCHitTest(const CPoint& point) OVERRIDE;
 
   // Backend for all scroll messages, the |message| parameter indicates which
   // one it is.
   void ScrollCommon(UINT message, int scroll_type, short position,
                     HWND scrollbar);
   bool ScrollZoom(int scroll_type);
 
   internal::NativeTabContentsViewDelegate* delegate_;
 
   // A drop target object that handles drags over this TabContents.
   scoped_refptr<WebDropTarget> drop_target_;
 
   // Used to handle the drag-and-drop.
   scoped_refptr<TabContentsDragWin> drag_handler_;
 
   DISALLOW_COPY_AND_ASSIGN(NativeTabContentsViewWin);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_TAB_CONTENTS_NATIVE_TAB_CONTENTS_VIEW_WIN_H_