Remove default arguments from CFX_FxgeDevice.

core/fxge/include/fx_dib.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 CORE_FXGE_INCLUDE_FX_DIB_H_
 #define CORE_FXGE_INCLUDE_FX_DIB_H_
 
 #include <memory>
@@ skipping 238 matching lines @@
   int m_bpp;
   uint32_t m_AlphaFlag;
   uint32_t m_Pitch;
   uint32_t* m_pPalette;
 
   void BuildPalette();
   FX_BOOL BuildAlphaMask();
   int FindPalette(uint32_t color) const;
   void GetPalette(uint32_t* pal, int alpha) const;
 };
+
 class CFX_DIBitmap : public CFX_DIBSource {
  public:
   CFX_DIBitmap();
   explicit CFX_DIBitmap(const CFX_DIBitmap& src);
   ~CFX_DIBitmap() override;
 
   FX_BOOL Create(int width,
                  int height,
                  FXDIB_Format format,
                  uint8_t* pBuffer = NULL,
@@ skipping 81 matching lines @@
   FX_BOOL CompositeRect(int dest_left,
                         int dest_top,
                         int width,
                         int height,
                         uint32_t color,
                         int alpha_flag = 0,
                         void* pIccTransform = NULL);
 
   FX_BOOL ConvertColorScale(uint32_t forecolor, uint32_t backcolor);
 
-  FX_BOOL DitherFS(const uint32_t* pPalette,
-                   int pal_size,
-                   const FX_RECT* pRect = NULL);
+ protected:
+  FX_BOOL GetGrayData(void* pIccTransform = NULL);
 
- protected:
   uint8_t* m_pBuffer;
+  FX_BOOL m_bExtBuf;
+};
 
-  FX_BOOL m_bExtBuf;
-
-  FX_BOOL GetGrayData(void* pIccTransform = NULL);
-};
 class CFX_DIBExtractor {
  public:
   CFX_DIBExtractor(const CFX_DIBSource* pSrc);
 
   ~CFX_DIBExtractor();
 
   operator CFX_DIBitmap*() { return m_pBitmap; }
 
  private:
   CFX_DIBitmap* m_pBitmap;
@@ skipping 281 matching lines @@
   int m_Status;
   FX_RECT m_ClipBox;
   uint32_t m_Flags;
   int m_AlphaFlag;
   void* m_pIccTransform;
   FX_BOOL m_bRgbByteOrder;
   int m_BlendType;
 };
 
 #endif  // CORE_FXGE_INCLUDE_FX_DIB_H_