Split CPDFXFA_Document apart

xfa/fxfa/app/xfa_ffdoc.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 "xfa/fxfa/include/xfa_ffdoc.h"
 
 #include <algorithm>
 
@@ skipping 129 matching lines @@
     }
     if (iBytes > 2) {
       *pDstEnd++ = ((uint8_t*)&dstData)[2];
     }
   }
   return pDstEnd - pDst;
 }
 
 }  // namespace
 
-CXFA_FFDoc::CXFA_FFDoc(CXFA_FFApp* pApp, IXFA_DocProvider* pDocProvider)
-    : m_pDocProvider(pDocProvider),
+CXFA_FFDoc::CXFA_FFDoc(CXFA_FFApp* pApp, IXFA_DocEnvironment* pDocEnvironment)
+    : m_pDocEnvironment(pDocEnvironment),
       m_pDocumentParser(nullptr),
       m_pStream(nullptr),
       m_pApp(pApp),
       m_pNotify(nullptr),
       m_pPDFDoc(nullptr),
       m_dwDocType(XFA_DOCTYPE_Static),
       m_bOwnStream(TRUE) {}
 
 CXFA_FFDoc::~CXFA_FFDoc() {
   CloseDoc();
@@ skipping 281 matching lines @@
 
   return !!pExport->Export(
       pFile, pNode, 0, bsChecksum.GetLength() ? bsChecksum.c_str() : nullptr);
 }
 
 FX_BOOL CXFA_FFDoc::ImportData(IFX_FileRead* pStream, FX_BOOL bXDP) {
   std::unique_ptr<CXFA_DataImporter> importer(
       new CXFA_DataImporter(m_pDocumentParser->GetDocument()));
   return importer->ImportData(pStream);
 }