kill IPDF_DocParser().

core/src/fpdfapi/fpdf_parser/fpdf_parser_document.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"
-extern FX_LPVOID PDFPreviewInitCache(CPDF_Document* pDoc);
-extern void PDFPreviewClearCache(FX_LPVOID pCache);
-CPDF_Document::CPDF_Document(IPDF_DocParser* pParser) : CPDF_IndirectObjects(pParser)
+
+CPDF_Document::CPDF_Document(CPDF_Parser* pParser) : CPDF_IndirectObjects(pParser)
 {
     ASSERT(pParser != NULL);
     m_pRootDict = NULL;
     m_pInfoDict = NULL;
     m_bLinearized = FALSE;
     m_dwFirstPageNo = 0;
     m_dwFirstPageObjNum = 0;
     m_pDocPage = CPDF_ModuleMgr::Get()->GetPageModule()->CreateDocData(this);
     m_pDocRender = CPDF_ModuleMgr::Get()->GetRenderModule()->CreateDocData(this);
 }
@@ skipping 372 matching lines @@
     if (m_pDocPage) {
         CPDF_ModuleMgr::Get()->GetPageModule()->ClearDoc(this);
     }
 }
 void CPDF_Document::ClearRenderData()
 {
     if (m_pDocRender) {
         CPDF_ModuleMgr::Get()->GetRenderModule()->ClearDocData(m_pDocRender);
     }
 }