Simplify PDFium by removing code that's not used in the open source repo.

core/src/fpdfapi/fpdf_parser/fpdf_parser_parser.cpp

 // 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 "../../../include/fpdfapi/fpdf_parser.h"
 #include "../../../include/fpdfapi/fpdf_module.h"
 #include "../../../include/fpdfapi/fpdf_page.h"
 #include "../../../../third_party/numerics/safe_math.h"
@@ skipping 1659 matching lines @@
 }
 CPDF_SyntaxParser::CPDF_SyntaxParser()
 {
     m_pFileAccess = NULL;
     m_pCryptoHandler = NULL;
     m_pFileBuf = NULL;
     m_BufSize = CPDF_ModuleMgr::Get()->m_FileBufSize;
     m_pFileBuf = NULL;
     m_MetadataObjnum = 0;
     m_dwWordPos = 0;
-#if defined(_FPDFAPI_MINI_)
-    m_bFileStream = TRUE;
-#else
     m_bFileStream = FALSE;
-#endif
 }
 CPDF_SyntaxParser::~CPDF_SyntaxParser()
 {
     if (m_pFileBuf) {
         FX_Free(m_pFileBuf);
     }
 }
 FX_BOOL CPDF_SyntaxParser::GetCharAt(FX_FILESIZE pos, FX_BYTE& ch)
 {
     FX_FILESIZE save_pos = m_Pos;
@@ skipping 767 matching lines @@
             } else {
                 m_Pos = StreamStartPos;
                 if (FindTag(FX_BSTRC("endobj"), 0) < 0) {
                     return NULL;
                 }
             }
         }
         m_Pos = StreamStartPos;
     }
     CPDF_Stream* pStream;
-#if defined(_FPDFAPI_MINI_) && !defined(_FXCORE_FEATURE_ALL_)
-    pStream = FX_NEW CPDF_Stream(m_pFileAccess, pCryptoHandler, m_HeaderOffset + m_Pos, len, pDict, gennum);
-    m_Pos += len;
-#else
     FX_LPBYTE pData = FX_Alloc(FX_BYTE, len);
     if (!pData) {
         return NULL;
     }
     ReadBlock(pData, len);
     if (pCryptoHandler) {
         CFX_BinaryBuf dest_buf;
         dest_buf.EstimateSize(pCryptoHandler->DecryptGetSize(len));
         FX_LPVOID context = pCryptoHandler->DecryptStart(objnum, gennum);
         pCryptoHandler->DecryptStream(context, pData, len, dest_buf);
         pCryptoHandler->DecryptFinish(context, dest_buf);
         FX_Free(pData);
         pData = dest_buf.GetBuffer();
         len = dest_buf.GetSize();
         dest_buf.DetachBuffer();
     }
     pStream = FX_NEW CPDF_Stream(pData, len, pDict);
-#endif
     if (pContext) {
         pContext->m_DataEnd = pContext->m_DataStart + len;
     }
     StreamStartPos = m_Pos;
     GetNextWord();
     if (m_WordSize == 6 && 0 == FXSYS_memcmp32(m_WordBuffer, "endobj", 6)) {
         m_Pos = StreamStartPos;
     }
     return pStream;
 }
@@ skipping 1923 matching lines @@
 {
     FX_INT32 iSize = m_childNode.GetSize();
     for (FX_INT32 i = 0; i < iSize; ++i) {
         CPDF_PageNode *pNode = (CPDF_PageNode*)m_childNode[i];
         if (pNode) {
             delete pNode;
         }
     }
     m_childNode.RemoveAll();
 }