Use std::map in xfa_ffdoc.cpp

xfa/fxfa/include/xfa_ffdoc.h

 // 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
 
 #ifndef XFA_FXFA_INCLUDE_XFA_FFDOC_H_
 #define XFA_FXFA_INCLUDE_XFA_FFDOC_H_
 
+#include <map>
+#include <memory>
+
 #include "xfa/fxfa/include/fxfa.h"
 #include "xfa/fxfa/parser/xfa_document.h"
 
 class CXFA_ChecksumContext;
 class CXFA_FFApp;
 class CXFA_FFNotify;
 class CXFA_FFDocView;
 
 struct FX_IMAGEDIB_AND_DPI {
   CFX_DIBSource* pDibSource;
@@ skipping 29 matching lines @@
                       CXFA_ChecksumContext* pCSContext = NULL);
   FX_BOOL ImportData(IFX_FileRead* pStream, FX_BOOL bXDP = TRUE);
 
  protected:
   IXFA_DocProvider* m_pDocProvider;
   CXFA_Document* m_pDocument;
   IFX_FileRead* m_pStream;
   CXFA_FFApp* m_pApp;
   CXFA_FFNotify* m_pNotify;
   CPDF_Document* m_pPDFDoc;
-  CFX_MapPtrToPtr m_mapNamedImages;
-  CFX_MapPtrToPtr m_mapTypeToDocView;
+  std::map<uint32_t, FX_IMAGEDIB_AND_DPI> m_HashToDibDpiMap;
+  std::map<uint32_t, std::unique_ptr<CXFA_FFDocView>> m_TypeToDocViewMap;
   uint32_t m_dwDocType;
   FX_BOOL m_bOwnStream;
 };
 
 #endif  // XFA_FXFA_INCLUDE_XFA_FFDOC_H_