Move core/fpdfapi/fpdf_font to core/fpdfapi/font

core/fpdfapi/fpdf_font/cpdf_fontencoding.h

-// Copyright 2016 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_FPDFAPI_FPDF_FONT_CPDF_FONTENCODING_H_
-#define CORE_FPDFAPI_FPDF_FONT_CPDF_FONTENCODING_H_
-
-#include "core/fxcrt/cfx_string_pool_template.h"
-#include "core/fxcrt/cfx_weak_ptr.h"
-#include "core/fxcrt/fx_string.h"
-
-#define PDFFONT_ENCODING_BUILTIN 0
-#define PDFFONT_ENCODING_WINANSI 1
-#define PDFFONT_ENCODING_MACROMAN 2
-#define PDFFONT_ENCODING_MACEXPERT 3
-#define PDFFONT_ENCODING_STANDARD 4
-#define PDFFONT_ENCODING_ADOBE_SYMBOL 5
-#define PDFFONT_ENCODING_ZAPFDINGBATS 6
-#define PDFFONT_ENCODING_PDFDOC 7
-#define PDFFONT_ENCODING_MS_SYMBOL 8
-#define PDFFONT_ENCODING_UNICODE 9
-
-uint32_t FT_CharCodeFromUnicode(int encoding, FX_WCHAR unicode);
-FX_WCHAR FT_UnicodeFromCharCode(int encoding, uint32_t charcode);
-
-FX_WCHAR PDF_UnicodeFromAdobeName(const FX_CHAR* name);
-CFX_ByteString PDF_AdobeNameFromUnicode(FX_WCHAR unicode);
-
-const uint16_t* PDF_UnicodesForPredefinedCharSet(int encoding);
-const FX_CHAR* PDF_CharNameFromPredefinedCharSet(int encoding,
-                                                 uint8_t charcode);
-
-class CPDF_Object;
-
-class CPDF_FontEncoding {
- public:
-  CPDF_FontEncoding();
-  explicit CPDF_FontEncoding(int PredefinedEncoding);
-
-  void LoadEncoding(CPDF_Object* pEncoding);
-
-  FX_BOOL IsIdentical(CPDF_FontEncoding* pAnother) const;
-
-  FX_WCHAR UnicodeFromCharCode(uint8_t charcode) const {
-    return m_Unicodes[charcode];
-  }
-  int CharCodeFromUnicode(FX_WCHAR unicode) const;
-
-  void SetUnicode(uint8_t charcode, FX_WCHAR unicode) {
-    m_Unicodes[charcode] = unicode;
-  }
-
-  CPDF_Object* Realize(CFX_WeakPtr<CFX_ByteStringPool> pPool);
-
- public:
-  FX_WCHAR m_Unicodes[256];
-};
-
-#endif  // CORE_FPDFAPI_FPDF_FONT_CPDF_FONTENCODING_H_