Cleanup IFPF_* interfaces.

core/fxge/include/fpf.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_FPF_H_
-#define CORE_FXGE_INCLUDE_FPF_H_
-
-#include "core/fxcrt/include/fx_coordinates.h"
-
-class IFPF_FontMgr;
-
-class IFPF_DeviceModule {
- public:
-  virtual ~IFPF_DeviceModule() {}
-  virtual void Destroy() = 0;
-  virtual IFPF_FontMgr* GetFontMgr() = 0;
-};
-
-IFPF_DeviceModule* FPF_GetDeviceModule();
-
-#define FPF_MATCHFONT_REPLACEANSI 1
-
-typedef struct FPF_HFONT_ { void* pData; } * FPF_HFONT;
-
-class IFPF_Font {
- public:
-  virtual void Release() = 0;
-  virtual IFPF_Font* Retain() = 0;
-  virtual FPF_HFONT GetHandle() = 0;
-  virtual CFX_ByteString GetFamilyName() = 0;
-  virtual CFX_WideString GetPsName() = 0;
-  virtual uint32_t GetFontStyle() const = 0;
-  virtual uint8_t GetCharset() const = 0;
-
-  virtual int32_t GetGlyphIndex(FX_WCHAR wUnicode) = 0;
-  virtual int32_t GetGlyphWidth(int32_t iGlyphIndex) = 0;
-
-  virtual int32_t GetAscent() const = 0;
-  virtual int32_t GetDescent() const = 0;
-
-  virtual FX_BOOL GetGlyphBBox(int32_t iGlyphIndex, FX_RECT& rtBBox) = 0;
-  virtual FX_BOOL GetBBox(FX_RECT& rtBBox) = 0;
-
-  virtual int32_t GetHeight() const = 0;
-  virtual int32_t GetItalicAngle() const = 0;
-  virtual uint32_t GetFontData(uint32_t dwTable,
-                               uint8_t* pBuffer,
-                               uint32_t dwSize) = 0;
-
- protected:
-  virtual ~IFPF_Font() {}
-};
-
-class IFPF_FontMgr {
- public:
-  virtual ~IFPF_FontMgr() {}
-  virtual void LoadSystemFonts() = 0;
-  virtual void LoadPrivateFont(IFX_FileRead* pFontFile) = 0;
-  virtual void LoadPrivateFont(const CFX_ByteStringC& bsFileName) = 0;
-  virtual void LoadPrivateFont(void* pBuffer, size_t szBuffer) = 0;
-
-  virtual IFPF_Font* CreateFont(const CFX_ByteStringC& bsFamilyname,
-                                uint8_t charset,
-                                uint32_t dwStyle,
-                                uint32_t dwMatch = 0) = 0;
-};
-
-#endif  // CORE_FXGE_INCLUDE_FPF_H_