Cleanup default FWL params part I

xfa/fwl/core/cfwl_datetimepicker.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_DATETIMEPICKER_H_
 #define XFA_FWL_CORE_CFWL_DATETIMEPICKER_H_
 
 #include <memory>
@@ skipping 24 matching lines @@
 class CFWL_DateTimeEdit;
 class CFWL_FormProxy;
 
 class CFWL_DateTimePicker : public CFWL_Widget {
  public:
   explicit CFWL_DateTimePicker(const CFWL_App* pApp);
   ~CFWL_DateTimePicker() override;
 
   // CFWL_Widget
   FWL_Type GetClassID() const override;
-  void GetWidgetRect(CFX_RectF& rect, bool bAutoSize = false) override;
+  void GetWidgetRect(CFX_RectF& rect, bool bAutoSize) override;
   void Update() override;
   FWL_WidgetHit HitTest(FX_FLOAT fx, FX_FLOAT fy) override;
-  void DrawWidget(CFX_Graphics* pGraphics,
-                  const CFX_Matrix* pMatrix = nullptr) override;
+  void DrawWidget(CFX_Graphics* pGraphics, const CFX_Matrix* pMatrix) override;
   void SetThemeProvider(IFWL_ThemeProvider* pTP) override;
   void OnProcessMessage(CFWL_Message* pMessage) override;
   void OnDrawWidget(CFX_Graphics* pGraphics,
                     const CFX_Matrix* pMatrix) override;
 
   void GetCurSel(int32_t& iYear, int32_t& iMonth, int32_t& iDay);
   void SetCurSel(int32_t iYear, int32_t iMonth, int32_t iDay);
 
   void SetEditText(const CFX_WideString& wsText);
   CFX_WideString GetEditText(int32_t nStart = 0, int32_t nCount = -1) const;
@@ skipping 47 matching lines @@
   int32_t m_iMonth;
   int32_t m_iDay;
   bool m_bLBtnDown;
   std::unique_ptr<CFWL_DateTimeEdit> m_pEdit;
   std::unique_ptr<CFWL_MonthCalendar> m_pMonthCal;
   std::unique_ptr<CFWL_FormProxy> m_pForm;
   FX_FLOAT m_fBtn;
 };
 
 #endif  // XFA_FWL_CORE_CFWL_DATETIMEPICKER_H_