Merge to XFA: Extern in .cpp file is a code smell, part 2.

(cherry picked from commit c3f4894a6862c74b9ab32b4ec38c531de6ecd83c)
Original Review URL: https://codereview.chromium.org/1298393003 .

Fixed IWYU in core/src/fpdftext/text_int.h exposed by new inclusion.

R=thestig@chromium.org

Review URL: https://codereview.chromium.org/1294933008 .

9 files changed, 45 insertions, 64 deletions

diff --git a/core/src/fpdfapi/fpdf_cmaps/cmap_int.h b/core/src/fpdfapi/fpdf_cmaps/cmap_int.h
index 41743a8f4a..7d51cee4cf 100644
--- a/core/src/fpdfapi/fpdf_cmaps/cmap_int.h
+++ b/core/src/fpdfapi/fpdf_cmaps/cmap_int.h
@@ -22,4 +22,11 @@ struct FXCMAP_CMap {
   int m_UseOffset;
 };
 
+void FPDFAPI_FindEmbeddedCMap(const char* name,
+                              int charset,
+                              int coding,
+                              const FXCMAP_CMap*& pMap);
+FX_WORD FPDFAPI_CIDFromCharCode(const FXCMAP_CMap* pMap, FX_DWORD charcode);
+FX_DWORD FPDFAPI_CharCodeFromCID(const FXCMAP_CMap* pMap, FX_WORD cid);
+
 #endif  // CORE_SRC_FPDFAPI_FPDF_CMAPS_CMAP_INT_H_
diff --git a/core/src/fpdfapi/fpdf_edit/fpdf_edit_doc.cpp b/core/src/fpdfapi/fpdf_edit/fpdf_edit_doc.cpp
index 1ff9876acc..d0be5ec1f4 100644
--- a/core/src/fpdfapi/fpdf_edit/fpdf_edit_doc.cpp
+++ b/core/src/fpdfapi/fpdf_edit/fpdf_edit_doc.cpp
@@ -219,15 +219,13 @@ CPDF_Font* CPDF_Document::AddWindowsFont(LOGFONTW* pLogFont,
   FXSYS_strcpy(lfa.lfFaceName, face.c_str());
   return AddWindowsFont(&lfa, bVert, bTranslateName);
 }
-extern CFX_ByteString _FPDF_GetNameFromTT(const uint8_t* name_table,
-                                          FX_DWORD name);
 CFX_ByteString _FPDF_GetPSNameFromTT(HDC hDC) {
   CFX_ByteString result;
   DWORD size = ::GetFontData(hDC, 'eman', 0, NULL, 0);
   if (size != GDI_ERROR) {
     LPBYTE buffer = FX_Alloc(BYTE, size);
     ::GetFontData(hDC, 'eman', 0, buffer, size);
-    result = _FPDF_GetNameFromTT(buffer, 6);
+    result = GetNameFromTT(buffer, 6);
     FX_Free(buffer);
   }
   return result;
diff --git a/core/src/fpdfapi/fpdf_font/fpdf_font.cpp b/core/src/fpdfapi/fpdf_font/fpdf_font.cpp
index 7f593c7be3..d64c77f03f 100644
--- a/core/src/fpdfapi/fpdf_font/fpdf_font.cpp
+++ b/core/src/fpdfapi/fpdf_font/fpdf_font.cpp
@@ -1049,7 +1049,6 @@ static FX_BOOL FT_UseType1Charmap(FXFT_Face face) {
   }
   return TRUE;
 }
-extern FX_WCHAR FT_UnicodeFromCharCode(int encoding, FX_DWORD charcode);
 #if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
 #include "../../fxge/apple/apple_int.h"
 #endif
diff --git a/core/src/fpdfapi/fpdf_font/fpdf_font_charset.cpp b/core/src/fpdfapi/fpdf_font/fpdf_font_charset.cpp
index a0b65af9c5..308dac9782 100644
--- a/core/src/fpdfapi/fpdf_font/fpdf_font_charset.cpp
+++ b/core/src/fpdfapi/fpdf_font/fpdf_font_charset.cpp
@@ -5,12 +5,10 @@
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
 #include "../../../include/fpdfapi/fpdf_page.h"
+#include "../../../include/fpdfapi/fpdf_parser.h"
 #include "../../../include/fpdfapi/fpdf_resource.h"
 #include "../../../include/fxge/fx_freetype.h"
 
-// TODO(tsepez): These belong in headers, too.
-extern const FX_WORD PDFDocEncoding[256];
-
 static const struct _UnicodeAlt {
   FX_WORD m_Unicode;
   const FX_CHAR* m_Alter;
@@ -1774,14 +1772,6 @@ const FX_WORD* PDF_UnicodesForPredefinedCharSet(int encoding) {
 FX_DWORD PDF_PredefinedCharCodeFromUnicode(int encoding, FX_WCHAR unicode) {
   return PDF_FindCode(PDF_UnicodesForPredefinedCharSet(encoding), unicode);
 }
-#ifdef __cplusplus
-extern "C" {
-#endif
-extern int FXFT_unicode_from_adobe_name(const char* name);
-extern void FXFT_adobe_name_from_unicode(char* glyph_name, FX_WCHAR unicode);
-#ifdef __cplusplus
-}
-#endif
 FX_WCHAR PDF_UnicodeFromAdobeName(const FX_CHAR* name) {
   return (FX_WCHAR)(FXFT_unicode_from_adobe_name(name) & 0x7FFFFFFF);
 }
diff --git a/core/src/fpdfapi/fpdf_font/fpdf_font_cid.cpp b/core/src/fpdfapi/fpdf_font/fpdf_font_cid.cpp
index 2fc1255989..c934124a8a 100644
--- a/core/src/fpdfapi/fpdf_font/fpdf_font_cid.cpp
+++ b/core/src/fpdfapi/fpdf_font/fpdf_font_cid.cpp
@@ -430,12 +430,7 @@ const CPDF_PredefinedCMap g_PredefinedCMaps[] = {
     {"UniKS-UCS2", CIDSET_KOREA1, CIDCODING_UCS2, CPDF_CMap::TwoBytes},
     {"UniKS-UTF16", CIDSET_KOREA1, CIDCODING_UTF16, CPDF_CMap::TwoBytes},
     {NULL, 0, 0}};
-extern void FPDFAPI_FindEmbeddedCMap(const char* name,
-                                     int charset,
-                                     int coding,
-                                     const FXCMAP_CMap*& pMap);
-extern FX_WORD FPDFAPI_CIDFromCharCode(const FXCMAP_CMap* pMap,
-                                       FX_DWORD charcode);
+
 FX_BOOL CPDF_CMap::LoadPredefined(CPDF_CMapManager* pMgr,
                                   const FX_CHAR* pName,
                                   FX_BOOL bPromptCJK) {
@@ -812,7 +807,6 @@ FX_WORD CPDF_CIDFont::CIDFromCharCode(FX_DWORD charcode) const {
 FX_BOOL CPDF_CIDFont::IsVertWriting() const {
   return m_pCMap ? m_pCMap->IsVertWriting() : FALSE;
 }
-extern FX_DWORD FPDFAPI_CharCodeFromCID(const FXCMAP_CMap* pMap, FX_WORD cid);
 static FX_DWORD _EmbeddedCharcodeFromUnicode(const FXCMAP_CMap* pEmbedMap,
                                              int charset,
                                              FX_WCHAR unicode) {
diff --git a/core/src/fpdfapi/fpdf_parser/fpdf_parser_decode.cpp b/core/src/fpdfapi/fpdf_parser/fpdf_parser_decode.cpp
index 85ba130b77..402a19ed4a 100644
--- a/core/src/fpdfapi/fpdf_parser/fpdf_parser_decode.cpp
+++ b/core/src/fpdfapi/fpdf_parser/fpdf_parser_decode.cpp
@@ -4,11 +4,44 @@
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
+#include <limits.h>
 #include "../../../include/fpdfapi/fpdf_parser.h"
 #include "../../../include/fpdfapi/fpdf_module.h"
 #include "../../../include/fxcodec/fx_codec.h"
-#include <limits.h>
+
 #define _STREAM_MAX_SIZE_ 20 * 1024 * 1024
+
+const FX_WORD PDFDocEncoding[256] = {
+    0x0000, 0x0001, 0x0002, 0x0003, 0x0004, 0x0005, 0x0006, 0x0007, 0x0008,
+    0x0009, 0x000a, 0x000b, 0x000c, 0x000d, 0x000e, 0x000f, 0x0010, 0x0011,
+    0x0012, 0x0013, 0x0014, 0x0015, 0x0016, 0x0017, 0x02d8, 0x02c7, 0x02c6,
+    0x02d9, 0x02dd, 0x02db, 0x02da, 0x02dc, 0x0020, 0x0021, 0x0022, 0x0023,
+    0x0024, 0x0025, 0x0026, 0x0027, 0x0028, 0x0029, 0x002a, 0x002b, 0x002c,
+    0x002d, 0x002e, 0x002f, 0x0030, 0x0031, 0x0032, 0x0033, 0x0034, 0x0035,
+    0x0036, 0x0037, 0x0038, 0x0039, 0x003a, 0x003b, 0x003c, 0x003d, 0x003e,
+    0x003f, 0x0040, 0x0041, 0x0042, 0x0043, 0x0044, 0x0045, 0x0046, 0x0047,
+    0x0048, 0x0049, 0x004a, 0x004b, 0x004c, 0x004d, 0x004e, 0x004f, 0x0050,
+    0x0051, 0x0052, 0x0053, 0x0054, 0x0055, 0x0056, 0x0057, 0x0058, 0x0059,
+    0x005a, 0x005b, 0x005c, 0x005d, 0x005e, 0x005f, 0x0060, 0x0061, 0x0062,
+    0x0063, 0x0064, 0x0065, 0x0066, 0x0067, 0x0068, 0x0069, 0x006a, 0x006b,
+    0x006c, 0x006d, 0x006e, 0x006f, 0x0070, 0x0071, 0x0072, 0x0073, 0x0074,
+    0x0075, 0x0076, 0x0077, 0x0078, 0x0079, 0x007a, 0x007b, 0x007c, 0x007d,
+    0x007e, 0x0000, 0x2022, 0x2020, 0x2021, 0x2026, 0x2014, 0x2013, 0x0192,
+    0x2044, 0x2039, 0x203a, 0x2212, 0x2030, 0x201e, 0x201c, 0x201d, 0x2018,
+    0x2019, 0x201a, 0x2122, 0xfb01, 0xfb02, 0x0141, 0x0152, 0x0160, 0x0178,
+    0x017d, 0x0131, 0x0142, 0x0153, 0x0161, 0x017e, 0x0000, 0x20ac, 0x00a1,
+    0x00a2, 0x00a3, 0x00a4, 0x00a5, 0x00a6, 0x00a7, 0x00a8, 0x00a9, 0x00aa,
+    0x00ab, 0x00ac, 0x0000, 0x00ae, 0x00af, 0x00b0, 0x00b1, 0x00b2, 0x00b3,
+    0x00b4, 0x00b5, 0x00b6, 0x00b7, 0x00b8, 0x00b9, 0x00ba, 0x00bb, 0x00bc,
+    0x00bd, 0x00be, 0x00bf, 0x00c0, 0x00c1, 0x00c2, 0x00c3, 0x00c4, 0x00c5,
+    0x00c6, 0x00c7, 0x00c8, 0x00c9, 0x00ca, 0x00cb, 0x00cc, 0x00cd, 0x00ce,
+    0x00cf, 0x00d0, 0x00d1, 0x00d2, 0x00d3, 0x00d4, 0x00d5, 0x00d6, 0x00d7,
+    0x00d8, 0x00d9, 0x00da, 0x00db, 0x00dc, 0x00dd, 0x00de, 0x00df, 0x00e0,
+    0x00e1, 0x00e2, 0x00e3, 0x00e4, 0x00e5, 0x00e6, 0x00e7, 0x00e8, 0x00e9,
+    0x00ea, 0x00eb, 0x00ec, 0x00ed, 0x00ee, 0x00ef, 0x00f0, 0x00f1, 0x00f2,
+    0x00f3, 0x00f4, 0x00f5, 0x00f6, 0x00f7, 0x00f8, 0x00f9, 0x00fa, 0x00fb,
+    0x00fc, 0x00fd, 0x00fe, 0x00ff};
+
 FX_DWORD _A85Decode(const uint8_t* src_buf,
                     FX_DWORD src_size,
                     uint8_t*& dest_buf,
@@ -394,36 +427,6 @@ FX_BOOL PDF_DataDecode(const uint8_t* src_buf,
   dest_size = last_size;
   return TRUE;
 }
-extern const FX_WORD PDFDocEncoding[256] = {
-    0x0000, 0x0001, 0x0002, 0x0003, 0x0004, 0x0005, 0x0006, 0x0007, 0x0008,
-    0x0009, 0x000a, 0x000b, 0x000c, 0x000d, 0x000e, 0x000f, 0x0010, 0x0011,
-    0x0012, 0x0013, 0x0014, 0x0015, 0x0016, 0x0017, 0x02d8, 0x02c7, 0x02c6,
-    0x02d9, 0x02dd, 0x02db, 0x02da, 0x02dc, 0x0020, 0x0021, 0x0022, 0x0023,
-    0x0024, 0x0025, 0x0026, 0x0027, 0x0028, 0x0029, 0x002a, 0x002b, 0x002c,
-    0x002d, 0x002e, 0x002f, 0x0030, 0x0031, 0x0032, 0x0033, 0x0034, 0x0035,
-    0x0036, 0x0037, 0x0038, 0x0039, 0x003a, 0x003b, 0x003c, 0x003d, 0x003e,
-    0x003f, 0x0040, 0x0041, 0x0042, 0x0043, 0x0044, 0x0045, 0x0046, 0x0047,
-    0x0048, 0x0049, 0x004a, 0x004b, 0x004c, 0x004d, 0x004e, 0x004f, 0x0050,
-    0x0051, 0x0052, 0x0053, 0x0054, 0x0055, 0x0056, 0x0057, 0x0058, 0x0059,
-    0x005a, 0x005b, 0x005c, 0x005d, 0x005e, 0x005f, 0x0060, 0x0061, 0x0062,
-    0x0063, 0x0064, 0x0065, 0x0066, 0x0067, 0x0068, 0x0069, 0x006a, 0x006b,
-    0x006c, 0x006d, 0x006e, 0x006f, 0x0070, 0x0071, 0x0072, 0x0073, 0x0074,
-    0x0075, 0x0076, 0x0077, 0x0078, 0x0079, 0x007a, 0x007b, 0x007c, 0x007d,
-    0x007e, 0x0000, 0x2022, 0x2020, 0x2021, 0x2026, 0x2014, 0x2013, 0x0192,
-    0x2044, 0x2039, 0x203a, 0x2212, 0x2030, 0x201e, 0x201c, 0x201d, 0x2018,
-    0x2019, 0x201a, 0x2122, 0xfb01, 0xfb02, 0x0141, 0x0152, 0x0160, 0x0178,
-    0x017d, 0x0131, 0x0142, 0x0153, 0x0161, 0x017e, 0x0000, 0x20ac, 0x00a1,
-    0x00a2, 0x00a3, 0x00a4, 0x00a5, 0x00a6, 0x00a7, 0x00a8, 0x00a9, 0x00aa,
-    0x00ab, 0x00ac, 0x0000, 0x00ae, 0x00af, 0x00b0, 0x00b1, 0x00b2, 0x00b3,
-    0x00b4, 0x00b5, 0x00b6, 0x00b7, 0x00b8, 0x00b9, 0x00ba, 0x00bb, 0x00bc,
-    0x00bd, 0x00be, 0x00bf, 0x00c0, 0x00c1, 0x00c2, 0x00c3, 0x00c4, 0x00c5,
-    0x00c6, 0x00c7, 0x00c8, 0x00c9, 0x00ca, 0x00cb, 0x00cc, 0x00cd, 0x00ce,
-    0x00cf, 0x00d0, 0x00d1, 0x00d2, 0x00d3, 0x00d4, 0x00d5, 0x00d6, 0x00d7,
-    0x00d8, 0x00d9, 0x00da, 0x00db, 0x00dc, 0x00dd, 0x00de, 0x00df, 0x00e0,
-    0x00e1, 0x00e2, 0x00e3, 0x00e4, 0x00e5, 0x00e6, 0x00e7, 0x00e8, 0x00e9,
-    0x00ea, 0x00eb, 0x00ec, 0x00ed, 0x00ee, 0x00ef, 0x00f0, 0x00f1, 0x00f2,
-    0x00f3, 0x00f4, 0x00f5, 0x00f6, 0x00f7, 0x00f8, 0x00f9, 0x00fa, 0x00fb,
-    0x00fc, 0x00fd, 0x00fe, 0x00ff};
 CFX_WideString PDF_DecodeText(const uint8_t* src_data,
                               FX_DWORD src_len,
                               CFX_CharMap* pCharMap) {
diff --git a/core/src/fpdfapi/fpdf_parser/fpdf_parser_document.cpp b/core/src/fpdfapi/fpdf_parser/fpdf_parser_document.cpp
index 0d7bdd8379..02ff1f3aca 100644
--- a/core/src/fpdfapi/fpdf_parser/fpdf_parser_document.cpp
+++ b/core/src/fpdfapi/fpdf_parser/fpdf_parser_document.cpp
@@ -86,7 +86,6 @@ void CPDF_Document::LoadAsynDoc(CPDF_Dictionary* pLinearized) {
 void CPDF_Document::LoadPages() {
   m_PageList.SetSize(_GetPageCount());
 }
-extern void FPDF_TTFaceMapper_ReleaseDoc(CPDF_Document*);
 CPDF_Document::~CPDF_Document() {
   if (m_pDocPage) {
     CPDF_ModuleMgr::Get()->GetPageModule()->ReleaseDoc(this);
diff --git a/core/src/fpdfapi/fpdf_parser/fpdf_parser_objects.cpp b/core/src/fpdfapi/fpdf_parser/fpdf_parser_objects.cpp
index eed62013f5..23742bc3de 100644
--- a/core/src/fpdfapi/fpdf_parser/fpdf_parser_objects.cpp
+++ b/core/src/fpdfapi/fpdf_parser/fpdf_parser_objects.cpp
@@ -1014,15 +1014,6 @@ CPDF_Stream* CPDF_Stream::Clone(FX_BOOL bDirect,
   pObj->InitStream((IFX_FileRead*)pFS, pCloneDict);
   return pObj;
 }
-extern FX_BOOL PDF_DataDecode(const uint8_t* src_buf,
-                              FX_DWORD src_size,
-                              const CPDF_Dictionary* pDict,
-                              uint8_t*& dest_buf,
-                              FX_DWORD& dest_size,
-                              CFX_ByteString& ImageEncoding,
-                              CPDF_Dictionary*& pImageParms,
-                              FX_DWORD estimated_size,
-                              FX_BOOL bImageAcc);
 CPDF_StreamAcc::CPDF_StreamAcc() {
   m_bNewBuf = FALSE;
   m_pData = NULL;
diff --git a/core/src/fpdfapi/fpdf_render/fpdf_render_text.cpp b/core/src/fpdfapi/fpdf_render/fpdf_render_text.cpp
index 50388332f8..eff7b06e67 100644
--- a/core/src/fpdfapi/fpdf_render/fpdf_render_text.cpp
+++ b/core/src/fpdfapi/fpdf_render/fpdf_render_text.cpp
@@ -9,7 +9,7 @@
 #include "../../../include/fpdfapi/fpdf_pageobj.h"
 #include "../fpdf_page/pageint.h"
 #include "render_int.h"
-extern FX_BOOL IsAvailableMatrix(const CFX_AffineMatrix& matrix);
+
 CPDF_Type3Cache::~CPDF_Type3Cache() {
   for (const auto& pair : m_SizeMap) {
     delete pair.second;