Remove include only fwl.h and IWYU.

xfa/include/fwl/lightwidget/barcode.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 XFA_INCLUDE_FWL_LIGHTWIDGET_BARCODE_H_
 #define XFA_INCLUDE_FWL_LIGHTWIDGET_BARCODE_H_
 
+#include "xfa/include/fwl/basewidget/fwl_barcode.h"
+#include "xfa/include/fwl/core/fwl_error.h"
 #include "xfa/include/fwl/lightwidget/edit.h"
+#include "xfa/include/fxbarcode/BC_BarCode.h"
 
 class CFWL_Widget;
 class CFWL_WidgetProperties;
-class IFWL_BarcodeDP;
-class CFWL_BarcodeDP;
 
 class CFWL_Barcode : public CFWL_Edit {
  public:
   static CFWL_Barcode* Create();
   FWL_ERR Initialize(const CFWL_WidgetProperties* pProperties = NULL);
   void SetType(BC_TYPE type);
   FX_BOOL IsProtectedType();
 
  public:
   void SetCharEncoding(BC_CHAR_ENCODING encoding) {
@@ skipping 85 matching lines @@
     FX_DWORD m_dwAttributeMask;
     virtual FX_DWORD GetBarcodeAttributeMask() { return m_dwAttributeMask; }
 
    public:
     CFWL_BarcodeDP() : m_dwAttributeMask(0) {}
   };
   CFWL_BarcodeDP m_barcodeData;
 };
 
 #endif  // XFA_INCLUDE_FWL_LIGHTWIDGET_BARCODE_H_