Cleanup widget edge related code

xfa/fwl/theme/cfwl_widgettp.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_THEME_CFWL_WIDGETTP_H_
 #define XFA_FWL_THEME_CFWL_WIDGETTP_H_
 
 #include <memory>
@@ skipping 116 matching lines @@
                FX_FLOAT fFontSize,
                FX_ARGB rgbFont);
   CFGAS_GEFont* GetFont(CFWL_Widget* pWidget);
 
  protected:
   CFWL_WidgetTP();
 
   void InitTTO();
   void FinalizeTTO();
 
-  void DrawEdge(CFX_Graphics* pGraphics,
-                uint32_t dwStyles,
-                const CFX_RectF* pRect,
-                CFX_Matrix* pMatrix = nullptr);
   void Draw3DRect(CFX_Graphics* pGraphics,
                   FWLTHEME_EDGE eType,
                   FX_FLOAT fWidth,
                   const CFX_RectF* pRect,
                   FX_ARGB cr1,
                   FX_ARGB cr2,
                   FX_ARGB cr3,
                   FX_ARGB cr4,
                   CFX_Matrix* pMatrix = nullptr);
   void Draw3DCircle(CFX_Graphics* pGraphics,
@@ skipping 103 matching lines @@
 
  protected:
   CFWL_FontManager();
   virtual ~CFWL_FontManager();
 
   static CFWL_FontManager* s_FontManager;
   std::vector<std::unique_ptr<CFWL_FontData>> m_FontsArray;
 };
 
 #endif  // XFA_FWL_THEME_CFWL_WIDGETTP_H_