Remove IXFA_Parser, cleanup XFA parser code.

xfa/fxfa/parser/xfa_parser_imp.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_PARSER_XFA_PARSER_IMP_H_
 #define XFA_FXFA_PARSER_XFA_PARSER_IMP_H_
 
 #include "xfa/fde/xml/fde_xml_imp.h"
-#include "xfa/fxfa/parser/xfa_parser.h"
+#include "xfa/fxfa/include/fxfa_basic.h"
 
+class CXFA_Document;
+class CXFA_FFNotify;
+class CXFA_Node;
 class CXFA_XMLParser;
 
-class CXFA_SimpleParser : public IXFA_Parser {
+class CXFA_SimpleParser {
  public:
-  CXFA_SimpleParser(CXFA_Document* pFactory, FX_BOOL bDocumentParser = FALSE);
-  ~CXFA_SimpleParser() override;
+  CXFA_SimpleParser(CXFA_Document* pFactory, bool bDocumentParser);
+  ~CXFA_SimpleParser();
 
-  // IXFA_Parser
-  void Release() override;
   int32_t StartParse(IFX_FileRead* pStream,
-                     XFA_XDPPACKET ePacketID = XFA_XDPPACKET_XDP) override;
-  int32_t DoParse(IFX_Pause* pPause = nullptr) override;
+                     XFA_XDPPACKET ePacketID = XFA_XDPPACKET_XDP);
+  int32_t DoParse(IFX_Pause* pPause = nullptr);
   int32_t ParseXMLData(const CFX_WideString& wsXML,
                        CFDE_XMLNode*& pXMLNode,
-                       IFX_Pause* pPause = nullptr) override;
-  void ConstructXFANode(CXFA_Node* pXFANode, CFDE_XMLNode* pXMLNode) override;
-  CXFA_Document* GetFactory() const override;
-  CXFA_Node* GetRootNode() const override;
-  CFDE_XMLDoc* GetXMLDoc() const override;
-  void CloseParser() override;
+                       IFX_Pause* pPause = nullptr);
+  void ConstructXFANode(CXFA_Node* pXFANode, CFDE_XMLNode* pXMLNode);
+  CXFA_Node* GetRootNode() const;
+  CFDE_XMLDoc* GetXMLDoc() const;
+  void CloseParser();
 
  protected:
   CXFA_Node* ParseAsXDPPacket(CFDE_XMLNode* pXMLDocumentNode,
                               XFA_XDPPACKET ePacketID);
   CXFA_Node* ParseAsXDPPacket_XDP(CFDE_XMLNode* pXMLDocumentNode,
                                   XFA_XDPPACKET ePacketID);
   CXFA_Node* ParseAsXDPPacket_Config(CFDE_XMLNode* pXMLDocumentNode,
                                      XFA_XDPPACKET ePacketID);
   CXFA_Node* ParseAsXDPPacket_TemplateForm(CFDE_XMLNode* pXMLDocumentNode,
                                            XFA_XDPPACKET ePacketID);
@@ skipping 32 matching lines @@
   CFDE_XMLDoc* m_pXMLDoc;
   IFX_Stream* m_pStream;
   IFX_FileRead* m_pFileRead;
   CXFA_Document* m_pFactory;
   CXFA_Node* m_pRootNode;
   XFA_XDPPACKET m_ePacketID;
   FX_BOOL m_bDocumentParser;
   friend class CXFA_DocumentParser;
 };
 
-class CXFA_DocumentParser : public IXFA_Parser {
+class CXFA_DocumentParser {
  public:
-  CXFA_DocumentParser(CXFA_FFNotify* pNotify);
-  ~CXFA_DocumentParser() override;
+  explicit CXFA_DocumentParser(CXFA_FFNotify* pNotify);
+  ~CXFA_DocumentParser();
 
-  // IXFA_Parser
-  void Release() override;
   int32_t StartParse(IFX_FileRead* pStream,
-                     XFA_XDPPACKET ePacketID = XFA_XDPPACKET_XDP) override;
-  int32_t DoParse(IFX_Pause* pPause = nullptr) override;
-  int32_t ParseXMLData(const CFX_WideString& wsXML,
-                       CFDE_XMLNode*& pXMLNode,
-                       IFX_Pause* pPause = nullptr) override;
-  void ConstructXFANode(CXFA_Node* pXFANode, CFDE_XMLNode* pXMLNode) override;
-  CXFA_Document* GetFactory() const override;
-  CXFA_Node* GetRootNode() const override;
-  CFDE_XMLDoc* GetXMLDoc() const override;
+                     XFA_XDPPACKET ePacketID = XFA_XDPPACKET_XDP);
+  int32_t DoParse(IFX_Pause* pPause = nullptr);
+
+  CFDE_XMLDoc* GetXMLDoc() const;
   CXFA_FFNotify* GetNotify() const;
   CXFA_Document* GetDocument() const;
-  void CloseParser() override;
+  void CloseParser();
 
  protected:
   CXFA_SimpleParser m_nodeParser;
   CXFA_FFNotify* m_pNotify;
-  CXFA_Document* m_pDocument;
+  std::unique_ptr<CXFA_Document> m_pDocument;
 };
 
 class CXFA_XMLParser : public CFDE_XMLParser {
  public:
   CXFA_XMLParser(CFDE_XMLNode* pRoot, IFX_Stream* pStream);
   ~CXFA_XMLParser() override;
 
   // CFDE_XMLParser
   void Release() override;
   int32_t DoParser(IFX_Pause* pPause) override;
@@ skipping 10 matching lines @@
   CFDE_XMLSyntaxParser* m_pParser;
   CFDE_XMLNode* m_pParent;
   CFDE_XMLNode* m_pChild;
   CFX_StackTemplate<CFDE_XMLNode*> m_NodeStack;
   CFX_WideString m_ws1;
   CFX_WideString m_ws2;
   FDE_XmlSyntaxResult m_syntaxParserResult;
 };
 
 #endif  // XFA_FXFA_PARSER_XFA_PARSER_IMP_H_