Cleanup default FWL params part I

xfa/fwl/core/cfwl_datetimepicker.h

Index: xfa/fwl/core/cfwl_datetimepicker.h
diff --git a/xfa/fwl/core/cfwl_datetimepicker.h b/xfa/fwl/core/cfwl_datetimepicker.h
index 69e4ef312230aa683e09c03d6e9820405fc64472..985627441dfac9d79abd195212afc8f5011256dd 100644
--- a/xfa/fwl/core/cfwl_datetimepicker.h
+++ b/xfa/fwl/core/cfwl_datetimepicker.h
@@ -42,11 +42,10 @@ class CFWL_DateTimePicker : public CFWL_Widget {
 
   // 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,
@@ -89,7 +88,7 @@ class CFWL_DateTimePicker : public CFWL_Widget {
   FWL_WidgetHit DisForm_HitTest(FX_FLOAT fx, FX_FLOAT fy) const;
   bool DisForm_IsNeedShowButton() const;
   void DisForm_Update();
-  void DisForm_GetWidgetRect(CFX_RectF& rect, bool bAutoSize = false);
+  void DisForm_GetWidgetRect(CFX_RectF& rect, bool bAutoSize);
   void DisForm_GetBBox(CFX_RectF& rect) const;
   void DisForm_DrawWidget(CFX_Graphics* pGraphics,
                           const CFX_Matrix* pMatrix = nullptr);