Remove some FWL 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 122 matching lines @@
                  CFX_Matrix* pMatrix = NULL);
   void DrawBtn(CFX_Graphics* pGraphics,
                const CFX_RectF* pRect,
                FWLTHEME_STATE eState,
                CFX_Matrix* pMatrix = NULL);
   void DrawArrowBtn(CFX_Graphics* pGraphics,
                     const CFX_RectF* pRect,
                     FWLTHEME_DIRECTION eDict,
                     FWLTHEME_STATE eState,
                     CFX_Matrix* pMatrix = NULL);
-  FWLCOLOR BlendColor(FWLCOLOR srcColor, FWLCOLOR renderColor, uint8_t scale);
   uint32_t m_dwRefCount;
   IFDE_TextOut* m_pTextOut;
   IFX_Font* m_pFDEFont;
   FX_FLOAT m_fValue;
   uint32_t m_dwValue;
   CFX_RectF m_rtMargin;
   uint32_t m_dwThemeID;
   CFX_Matrix _ctm;
 };
 FX_BOOL FWLTHEME_Init();
 void FWLTHEME_Release();
 uint32_t FWL_GetThemeLayout(uint32_t dwThemeID);
 uint32_t FWL_GetThemeColor(uint32_t dwThemeID);
-uint32_t FWL_MakeThemeID(uint32_t dwLayout, uint32_t dwColor);
 
 class CFWL_ArrowData {
  public:
   static CFWL_ArrowData* GetInstance();
   static FX_BOOL IsInstance();
   static void DestroyInstance();
   virtual ~CFWL_ArrowData();
   void SetColorData(uint32_t dwID);
 
   class CColorData {
@@ skipping 43 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_