Cleanup FWL default values part II.

xfa/fwl/core/cfwl_scrollbar.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_SCROLLBAR_H_
 #define XFA_FWL_CORE_CFWL_SCROLLBAR_H_
 
 #include <memory>
@@ skipping 51 matching lines @@
 
     void Run(CFWL_TimerInfo* pTimerInfo) override;
   };
   friend class CFWL_ScrollBar::Timer;
 
   bool IsVertical() const {
     return !!(m_pProperties->m_dwStyleExes & FWL_STYLEEXT_SCB_Vert);
   }
   void DrawTrack(CFX_Graphics* pGraphics,
                  IFWL_ThemeProvider* pTheme,
-                 bool bLower = true,
-                 const CFX_Matrix* pMatrix = nullptr);
+                 bool bLower,
+                 const CFX_Matrix* pMatrix);
   void DrawArrowBtn(CFX_Graphics* pGraphics,
                     IFWL_ThemeProvider* pTheme,
-                    bool bMinBtn = true,
-                    const CFX_Matrix* pMatrix = nullptr);
+                    bool bMinBtn,
+                    const CFX_Matrix* pMatrix);
   void DrawThumb(CFX_Graphics* pGraphics,
                  IFWL_ThemeProvider* pTheme,
-                 const CFX_Matrix* pMatrix = nullptr);
+                 const CFX_Matrix* pMatrix);
   void Layout();
   void CalcButtonLen();
   void CalcMinButtonRect(CFX_RectF& rect);
   void CalcMaxButtonRect(CFX_RectF& rect);
   void CalcThumbButtonRect(CFX_RectF& rect);
   void CalcMinTrackRect(CFX_RectF& rect);
   void CalcMaxTrackRect(CFX_RectF& rect);
   FX_FLOAT GetTrackPointPos(FX_FLOAT fx, FX_FLOAT fy);
-  void GetTrackRect(CFX_RectF& rect, bool bLower = true);
+
   bool SendEvent();
   bool OnScroll(CFWL_EvtScroll::Code dwCode, FX_FLOAT fPos);
   void OnLButtonDown(uint32_t dwFlags, FX_FLOAT fx, FX_FLOAT fy);
   void OnLButtonUp(uint32_t dwFlags, FX_FLOAT fx, FX_FLOAT fy);
   void OnMouseMove(uint32_t dwFlags, FX_FLOAT fx, FX_FLOAT fy);
   void OnMouseLeave();
   void OnMouseWheel(FX_FLOAT fx,
                     FX_FLOAT fy,
                     uint32_t dwFlags,
                     FX_FLOAT fDeltaX,
                     FX_FLOAT fDeltaY);
-  bool DoScroll(CFWL_EvtScroll::Code dwCode, FX_FLOAT fPos = 0.0f);
+  bool DoScroll(CFWL_EvtScroll::Code dwCode, FX_FLOAT fPos);
   void DoMouseDown(int32_t iItem,
                    const CFX_RectF& rtItem,
                    int32_t& iState,
                    FX_FLOAT fx,
                    FX_FLOAT fy);
   void DoMouseUp(int32_t iItem,
                  const CFX_RectF& rtItem,
                  int32_t& iState,
                  FX_FLOAT fx,
                  FX_FLOAT fy);
@@ skipping 28 matching lines @@
   CFX_RectF m_rtThumb;
   CFX_RectF m_rtMinBtn;
   CFX_RectF m_rtMaxBtn;
   CFX_RectF m_rtMinTrack;
   CFX_RectF m_rtMaxTrack;
   FX_FLOAT m_fMinThumb;
   CFWL_ScrollBar::Timer m_Timer;
 };
 
 #endif  // XFA_FWL_CORE_CFWL_SCROLLBAR_H_