Merge the CFWL_*Imp classes into the IFWL_* classes.

xfa/fwl/basewidget/fwl_barcodeimp.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_FWL_BASEWIDGET_FWL_BARCODEIMP_H_
-#define XFA_FWL_BASEWIDGET_FWL_BARCODEIMP_H_
-
-#include <memory>
-
-#include "xfa/fwl/basewidget/fwl_editimp.h"
-#include "xfa/fwl/basewidget/ifwl_barcode.h"
-#include "xfa/fwl/basewidget/ifwl_scrollbar.h"
-
-class CFWL_WidgetImpProperties;
-class CFWL_BarcodeImpDelegate;
-class CFX_Barcode;
-class IFWL_Widget;
-
-#define XFA_BCS_NeedUpdate 0x0001
-#define XFA_BCS_EncodeSuccess 0x0002
-
-class CFWL_BarcodeImp : public CFWL_EditImp {
- public:
-  CFWL_BarcodeImp(const CFWL_WidgetImpProperties& properties,
-                  IFWL_Widget* pOuter);
-  ~CFWL_BarcodeImp() override;
-
-  // CFWL_WidgetImp
-  FWL_Error GetClassName(CFX_WideString& wsClass) const override;
-  FWL_Type GetClassID() const override;
-  FWL_Error Initialize() override;
-  FWL_Error Finalize() override;
-  FWL_Error Update() override;
-  FWL_Error DrawWidget(CFX_Graphics* pGraphics,
-                       const CFX_Matrix* pMatrix = nullptr) override;
-  FWL_Error SetText(const CFX_WideString& wsText) override;
-
-  void SetType(BC_TYPE type);
-  FX_BOOL IsProtectedType();
-
- protected:
-  friend class CFWL_BarcodeImpDelegate;
-
-  void GenerateBarcodeImageCache();
-  void CreateBarcodeEngine();
-
-  std::unique_ptr<CFX_Barcode> m_pBarcodeEngine;
-  uint32_t m_dwStatus;
-  BC_TYPE m_type;
-};
-
-class CFWL_BarcodeImpDelegate : public CFWL_EditImpDelegate {
- public:
-  explicit CFWL_BarcodeImpDelegate(CFWL_BarcodeImp* pOwner);
-  void OnProcessEvent(CFWL_Event* pEvent) override;
-};
-
-#endif  // XFA_FWL_BASEWIDGET_FWL_BARCODEIMP_H_