Split CPDFXFA_Document apart

xfa/fxfa/include/xfa_ffapp.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_FFAPP_H_
 #define XFA_FXFA_INCLUDE_XFA_FFAPP_H_
 
 #include <memory>
@@ skipping 24 matching lines @@
 
  protected:
   CFX_ObjectArray<CPDF_StreamAcc> m_Data;
 };
 
 class CXFA_FFApp {
  public:
   explicit CXFA_FFApp(IXFA_AppProvider* pProvider);
   ~CXFA_FFApp();
 
-  CXFA_FFDoc* CreateDoc(IXFA_DocProvider* pProvider,
+  CXFA_FFDoc* CreateDoc(IXFA_DocEnvironment* pDocEnvironment,
                         IFX_FileRead* pStream,
                         FX_BOOL bTakeOverFile);
-  CXFA_FFDoc* CreateDoc(IXFA_DocProvider* pProvider, CPDF_Document* pPDFDoc);
+  CXFA_FFDoc* CreateDoc(IXFA_DocEnvironment* pDocEnvironment,
+                        CPDF_Document* pPDFDoc);
   void SetDefaultFontMgr(std::unique_ptr<CXFA_DefFontMgr> pFontMgr);
 
   CXFA_FFDocHandler* GetDocHandler();
   CXFA_FWLAdapterWidgetMgr* GetWidgetMgr(CFWL_WidgetMgrDelegate* pDelegate);
   IFGAS_FontMgr* GetFDEFontMgr();
   CXFA_FWLTheme* GetFWLTheme();
 
   IXFA_AppProvider* GetAppProvider() const { return m_pProvider; }
   IFWL_AdapterTimerMgr* GetTimerMgr() const;
   CXFA_FontMgr* GetXFAFontMgr() const;
@@ skipping 24 matching lines @@
   std::unique_ptr<CXFA_FWLAdapterWidgetMgr> m_pAdapterWidgetMgr;
   CFWL_WidgetMgrDelegate* m_pWidgetMgrDelegate;  // not owned.
 
   // |m_pFWLApp| has to be released first, then |m_pFWLTheme| since the former
   // may refers to theme manager and the latter refers to font manager.
   std::unique_ptr<CXFA_FWLTheme> m_pFWLTheme;
   std::unique_ptr<IFWL_App> m_pFWLApp;
 };
 
 #endif  // XFA_FXFA_INCLUDE_XFA_FFAPP_H_