Cleanup unused methods and return values in FWL code.

xfa/fwl/core/ifwl_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_FWL_CORE_IFWL_BARCODE_H_
 #define XFA_FWL_CORE_IFWL_BARCODE_H_
 
 #include <memory>
 
 #include "xfa/fwl/core/ifwl_edit.h"
 #include "xfa/fwl/core/ifwl_scrollbar.h"
 #include "xfa/fxbarcode/BC_Library.h"
 
 class CFWL_BarcodeImpDelegate;
 class CFWL_WidgetImpProperties;
 class CFX_Barcode;
 class IFWL_Widget;
 
 #define XFA_BCS_NeedUpdate 0x0001
 #define XFA_BCS_EncodeSuccess 0x0002
-#define FWL_CLASS_Barcode L"FWL_BARCODE"
 
 enum FWL_BCDAttribute {
   FWL_BCDATTRIBUTE_NONE = 0,
   FWL_BCDATTRIBUTE_CHARENCODING = 1 << 0,
   FWL_BCDATTRIBUTE_MODULEHEIGHT = 1 << 1,
   FWL_BCDATTRIBUTE_MODULEWIDTH = 1 << 2,
   FWL_BCDATTRIBUTE_DATALENGTH = 1 << 3,
   FWL_BCDATTRIBUTE_CALCHECKSUM = 1 << 4,
   FWL_BCDATTRIBUTE_PRINTCHECKSUM = 1 << 5,
   FWL_BCDATTRIBUTE_TEXTLOCATION = 1 << 6,
@@ skipping 22 matching lines @@
   virtual FX_BOOL GetTruncated() = 0;
   virtual uint32_t GetBarcodeAttributeMask() = 0;
 };
 
 class IFWL_Barcode : public IFWL_Edit {
  public:
   explicit IFWL_Barcode(const CFWL_WidgetImpProperties& properties);
   ~IFWL_Barcode() override;
 
   // IFWL_Widget
-  FWL_Error GetClassName(CFX_WideString& wsClass) const override;
   FWL_Type GetClassID() const override;
   FWL_Error Initialize() override;
-  FWL_Error Finalize() override;
+  void 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(IFWL_Barcode* pOwner);
   void OnProcessEvent(CFWL_Event* pEvent) override;
 };
 
 #endif  // XFA_FWL_CORE_IFWL_BARCODE_H_