Name core/fxge/android files appropriately and use one file per class

core/fxge/android/fpf_skiafont.cpp

Index: core/fxge/android/fpf_skiafont.cpp
diff --git a/core/fxge/android/fpf_skiafont.cpp b/core/fxge/android/fpf_skiafont.cpp
deleted file mode 100644
index 9c1969738737d59389924854d03a77ad6ad5cd6a..0000000000000000000000000000000000000000
--- a/core/fxge/android/fpf_skiafont.cpp
+++ /dev/null
@@ -1,215 +0,0 @@
-// 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
-
-#include "core/fxge/android/fpf_skiafont.h"
-
-#include <algorithm>
-
-#include "core/fxcrt/fx_system.h"
-#include "core/fxge/android/fpf_skiafontmgr.h"
-#include "core/fxge/fx_freetype.h"
-
-#define FPF_EM_ADJUST(em, a) (em == 0 ? (a) : (a)*1000 / em)
-
-CFPF_SkiaFont::CFPF_SkiaFont()
-    : m_pFontMgr(nullptr),
-      m_pFontDes(nullptr),
-      m_Face(nullptr),
-      m_dwStyle(0),
-      m_uCharset(0),
-      m_dwRefCount(0) {}
-
-CFPF_SkiaFont::~CFPF_SkiaFont() {
-  if (m_Face)
-    FXFT_Done_Face(m_Face);
-}
-
-void CFPF_SkiaFont::Release() {
-  if (--m_dwRefCount == 0)
-    delete this;
-}
-
-CFPF_SkiaFont* CFPF_SkiaFont::Retain() {
-  m_dwRefCount++;
-  return this;
-}
-
-CFX_ByteString CFPF_SkiaFont::GetFamilyName() {
-  if (!m_Face)
-    return CFX_ByteString();
-  return CFX_ByteString(FXFT_Get_Face_Family_Name(m_Face));
-}
-
-CFX_ByteString CFPF_SkiaFont::GetPsName() {
-  if (!m_Face)
-    return CFX_ByteString();
-  return FXFT_Get_Postscript_Name(m_Face);
-}
-
-int32_t CFPF_SkiaFont::GetGlyphIndex(FX_WCHAR wUnicode) {
-  if (!m_Face)
-    return wUnicode;
-  if (FXFT_Select_Charmap(m_Face, FXFT_ENCODING_UNICODE))
-    return 0;
-  return FXFT_Get_Char_Index(m_Face, wUnicode);
-}
-
-int32_t CFPF_SkiaFont::GetGlyphWidth(int32_t iGlyphIndex) {
-  if (!m_Face)
-    return 0;
-  if (FXFT_Load_Glyph(
-          m_Face, iGlyphIndex,
-          FXFT_LOAD_NO_SCALE | FXFT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH)) {
-    return 0;
-  }
-  return FPF_EM_ADJUST(FXFT_Get_Face_UnitsPerEM(m_Face),
-                       FXFT_Get_Glyph_HoriAdvance(m_Face));
-}
-
-int32_t CFPF_SkiaFont::GetAscent() const {
-  if (!m_Face)
-    return 0;
-  return FPF_EM_ADJUST(FXFT_Get_Face_UnitsPerEM(m_Face),
-                       FXFT_Get_Face_Ascender(m_Face));
-}
-
-int32_t CFPF_SkiaFont::GetDescent() const {
-  if (!m_Face)
-    return 0;
-  return FPF_EM_ADJUST(FXFT_Get_Face_UnitsPerEM(m_Face),
-                       FXFT_Get_Face_Descender(m_Face));
-}
-
-FX_BOOL CFPF_SkiaFont::GetGlyphBBox(int32_t iGlyphIndex, FX_RECT& rtBBox) {
-  if (!m_Face)
-    return FALSE;
-  if (FXFT_Is_Face_Tricky(m_Face)) {
-    if (FXFT_Set_Char_Size(m_Face, 0, 1000 * 64, 72, 72))
-      return FALSE;
-    if (FXFT_Load_Glyph(m_Face, iGlyphIndex,
-                        FXFT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH)) {
-      FXFT_Set_Pixel_Sizes(m_Face, 0, 64);
-      return FALSE;
-    }
-    FXFT_Glyph glyph;
-    if (FXFT_Get_Glyph(m_Face->glyph, &glyph)) {
-      FXFT_Set_Pixel_Sizes(m_Face, 0, 64);
-      return FALSE;
-    }
-    FXFT_BBox cbox;
-    FXFT_Glyph_Get_CBox(glyph, FXFT_GLYPH_BBOX_PIXELS, &cbox);
-    int32_t x_ppem = m_Face->size->metrics.x_ppem;
-    int32_t y_ppem = m_Face->size->metrics.y_ppem;
-    rtBBox.left = FPF_EM_ADJUST(x_ppem, cbox.xMin);
-    rtBBox.right = FPF_EM_ADJUST(x_ppem, cbox.xMax);
-    rtBBox.top = FPF_EM_ADJUST(y_ppem, cbox.yMax);
-    rtBBox.bottom = FPF_EM_ADJUST(y_ppem, cbox.yMin);
-    rtBBox.top = std::min(rtBBox.top, GetAscent());
-    rtBBox.bottom = std::max(rtBBox.bottom, GetDescent());
-    FXFT_Done_Glyph(glyph);
-    return FXFT_Set_Pixel_Sizes(m_Face, 0, 64) == 0;
-  }
-  if (FXFT_Load_Glyph(
-          m_Face, iGlyphIndex,
-          FXFT_LOAD_NO_SCALE | FXFT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH)) {
-    return FALSE;
-  }
-  rtBBox.left = FPF_EM_ADJUST(FXFT_Get_Face_UnitsPerEM(m_Face),
-                              FXFT_Get_Glyph_HoriBearingX(m_Face));
-  rtBBox.bottom = FPF_EM_ADJUST(FXFT_Get_Face_UnitsPerEM(m_Face),
-                                FXFT_Get_Glyph_HoriBearingY(m_Face));
-  rtBBox.right = FPF_EM_ADJUST(
-      FXFT_Get_Face_UnitsPerEM(m_Face),
-      FXFT_Get_Glyph_HoriBearingX(m_Face) + FXFT_Get_Glyph_Width(m_Face));
-  rtBBox.top = FPF_EM_ADJUST(
-      FXFT_Get_Face_UnitsPerEM(m_Face),
-      FXFT_Get_Glyph_HoriBearingY(m_Face) - FXFT_Get_Glyph_Height(m_Face));
-  return TRUE;
-}
-
-FX_BOOL CFPF_SkiaFont::GetBBox(FX_RECT& rtBBox) {
-  if (!m_Face) {
-    return FALSE;
-  }
-  rtBBox.left = FPF_EM_ADJUST(FXFT_Get_Face_UnitsPerEM(m_Face),
-                              FXFT_Get_Face_xMin(m_Face));
-  rtBBox.top = FPF_EM_ADJUST(FXFT_Get_Face_UnitsPerEM(m_Face),
-                             FXFT_Get_Face_yMin(m_Face));
-  rtBBox.right = FPF_EM_ADJUST(FXFT_Get_Face_UnitsPerEM(m_Face),
-                               FXFT_Get_Face_xMax(m_Face));
-  rtBBox.bottom = FPF_EM_ADJUST(FXFT_Get_Face_UnitsPerEM(m_Face),
-                                FXFT_Get_Face_yMax(m_Face));
-  return TRUE;
-}
-
-int32_t CFPF_SkiaFont::GetHeight() const {
-  if (!m_Face)
-    return 0;
-  return FPF_EM_ADJUST(FXFT_Get_Face_UnitsPerEM(m_Face),
-                       FXFT_Get_Face_Height(m_Face));
-}
-
-int32_t CFPF_SkiaFont::GetItalicAngle() const {
-  if (!m_Face)
-    return 0;
-
-  TT_Postscript* ttInfo =
-      (TT_Postscript*)FT_Get_Sfnt_Table(m_Face, ft_sfnt_post);
-  if (ttInfo)
-    return ttInfo->italicAngle;
-  return 0;
-}
-
-uint32_t CFPF_SkiaFont::GetFontData(uint32_t dwTable,
-                                    uint8_t* pBuffer,
-                                    uint32_t dwSize) {
-  if (!m_Face)
-    return 0;
-
-  FT_ULong ulSize = pdfium::base::checked_cast<FT_ULong>(dwSize);
-  if (FXFT_Load_Sfnt_Table(m_Face, dwTable, 0, pBuffer, &ulSize))
-    return 0;
-  return pdfium::base::checked_cast<uint32_t>(ulSize);
-}
-
-FX_BOOL CFPF_SkiaFont::InitFont(CFPF_SkiaFontMgr* pFontMgr,
-                                CFPF_SkiaFontDescriptor* pFontDes,
-                                const CFX_ByteStringC& bsFamily,
-                                uint32_t dwStyle,
-                                uint8_t uCharset) {
-  if (!pFontMgr || !pFontDes)
-    return FALSE;
-
-  switch (pFontDes->GetType()) {
-    case FPF_SKIAFONTTYPE_Path: {
-      CFPF_SkiaPathFont* pFont = (CFPF_SkiaPathFont*)pFontDes;
-      m_Face = pFontMgr->GetFontFace(pFont->m_pPath, pFont->m_iFaceIndex);
-      break;
-    }
-    case FPF_SKIAFONTTYPE_File: {
-      CFPF_SkiaFileFont* pFont = (CFPF_SkiaFileFont*)pFontDes;
-      m_Face = pFontMgr->GetFontFace(pFont->m_pFile, pFont->m_iFaceIndex);
-      break;
-    }
-    case FPF_SKIAFONTTYPE_Buffer: {
-      CFPF_SkiaBufferFont* pFont = (CFPF_SkiaBufferFont*)pFontDes;
-      m_Face = pFontMgr->GetFontFace((const uint8_t*)pFont->m_pBuffer,
-                                     pFont->m_szBuffer, pFont->m_iFaceIndex);
-      break;
-    }
-    default:
-      return FALSE;
-  }
-  if (!m_Face)
-    return FALSE;
-
-  m_dwStyle = dwStyle;
-  m_uCharset = uCharset;
-  m_pFontMgr = pFontMgr;
-  m_pFontDes = pFontDes;
-  m_dwRefCount = 1;
-  return TRUE;
-}