Cleanup default FWL params part I

xfa/fwl/core/cfwl_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_CFWL_BARCODE_H_
 #define XFA_FWL_CORE_CFWL_BARCODE_H_
 
 #include <memory>
@@ skipping 28 matching lines @@
 };
 
 class CFWL_Barcode : public CFWL_Edit {
  public:
   explicit CFWL_Barcode(const CFWL_App* pApp);
   ~CFWL_Barcode() override;
 
   // CFWL_Widget
   FWL_Type GetClassID() const override;
   void Update() override;
-  void DrawWidget(CFX_Graphics* pGraphics,
-                  const CFX_Matrix* pMatrix = nullptr) override;
+  void DrawWidget(CFX_Graphics* pGraphics, const CFX_Matrix* pMatrix) override;
   void OnProcessEvent(CFWL_Event* pEvent) override;
 
   // CFWL_Edit
   void SetText(const CFX_WideString& wsText) override;
 
   void SetType(BC_TYPE type);
   bool IsProtectedType() const;
 
   void SetCharEncoding(BC_CHAR_ENCODING encoding);
   void SetModuleHeight(int32_t height);
@@ skipping 24 matching lines @@
   BC_TEXT_LOC m_eTextLocation;
   int32_t m_nWideNarrowRatio;
   FX_CHAR m_cStartChar;
   FX_CHAR m_cEndChar;
   int32_t m_nECLevel;
   bool m_bTruncated;
   uint32_t m_dwAttributeMask;
 };
 
 #endif  // XFA_FWL_CORE_CFWL_BARCODE_H_