More IFX_ interface cleanup.

xfa/fxfa/include/xfa_fontmgr.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_FXFA_INCLUDE_XFA_FONTMGR_H_
 #define XFA_FXFA_INCLUDE_XFA_FONTMGR_H_
 
 #include <map>
@@ skipping 24 matching lines @@
                     uint16_t wCodePage = 0xFFFF);
   IFX_Font* GetDefaultFont(CXFA_FFDoc* hDoc,
                            const CFX_WideStringC& wsFontFamily,
                            uint32_t dwFontStyles,
                            uint16_t wCodePage = 0xFFFF);
 
  protected:
   CFX_PtrArray m_CacheFonts;
 };
 
-class CXFA_PDFFontMgr : public IFX_FontProvider {
+class CXFA_PDFFontMgr {
  public:
   CXFA_PDFFontMgr(CXFA_FFDoc* pDoc);
   ~CXFA_PDFFontMgr();
+
   IFX_Font* GetFont(const CFX_WideStringC& wsFontFamily,
                     uint32_t dwFontStyles,
                     CPDF_Font** pPDFFont,
                     FX_BOOL bStrictMatch = TRUE);
   FX_BOOL GetCharWidth(IFX_Font* pFont,
                        FX_WCHAR wUnicode,
                        int32_t& iWidth,
                        FX_BOOL bCharCode);
   CFX_MapPtrToPtr m_FDE2PDFFont;
 
@@ skipping 31 matching lines @@
 
  protected:
   void DelAllMgrMap();
 
   CFX_MapPtrToPtr m_PDFFontMgrArray;
   CXFA_DefFontMgr* m_pDefFontMgr;
   std::map<CFX_ByteString, IFX_Font*> m_FontMap;
 };
 
 #endif  //  XFA_FXFA_INCLUDE_XFA_FONTMGR_H_