Fix ALL the include guards.

fpdfsdk/include/pdfwindow/PWL_Wnd.h

 // Copyright 2014 PDFium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
  
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef _PWL_WND_H_
-#define _PWL_WND_H_
+#ifndef FPDFSDK_INCLUDE_PDFWINDOW_PWL_WND_H_
+#define FPDFSDK_INCLUDE_PDFWINDOW_PWL_WND_H_
 
 #include "../../../core/include/fxcrt/fx_basic.h"
 #include "../../../core/include/fpdfdoc/fpdf_doc.h"
 #include "../fx_systemhandler.h"
 
 class CPWL_MsgControl;
 class CPWL_ScrollBar;
 class CPWL_Timer;
 class CPWL_TimerHandler;
 class CPWL_Wnd;
@@ skipping 448 matching lines @@
 
         CPDF_Rect                                               m_rcWindow;
         CPDF_Rect                                               m_rcClip;
 
         FX_BOOL                                                 m_bCreated;                     
         FX_BOOL                                                 m_bVisible;
         FX_BOOL                                                 m_bNotifying;   
         FX_BOOL                                                 m_bEnabled;
 };
 
-// #ifndef VK_END
-// 
-// #define VK_END            0x23
-// #define VK_HOME           0x24
-// #define VK_LEFT           0x25
-// #define VK_UP             0x26
-// #define VK_RIGHT          0x27
-// #define VK_DOWN           0x28
-// #define VK_INSERT         0x2D
-// #define VK_DELETE         0x2E
-// 
-// #define VK_BACK           0x08
-// #define VK_TAB            0x09
-// 
-// #define VK_CLEAR          0x0C
-// #define VK_RETURN         0x0D
-// #define VK_ESCAPE         0x1B
-// #define VK_SPACE          0x20
-// #endif
-// 
-// #define VK_NONE                        0
-
-#endif // !defined(AFX_PWL_WND_H__D32812AD_A875_4E08_9D3C_0A57020987C6__INCLUDED_)
-
-
+#endif  // FPDFSDK_INCLUDE_PDFWINDOW_PWL_WND_H_