Move CPDFSDK_Environment code to cpp file

fpdfsdk/fpdfxfa/include/cpdfxfa_docenvironment.h

 // Copyright 2016 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 FPDFSDK_FPDFXFA_INCLUDE_CPDFXFA_DOCENVIRONMENT_H_
 #define FPDFSDK_FPDFXFA_INCLUDE_CPDFXFA_DOCENVIRONMENT_H_
 
 #include "public/fpdfview.h"
@@ skipping 36 matching lines @@
   int32_t CountPages(CXFA_FFDoc* hDoc) override;
   int32_t GetCurrentPage(CXFA_FFDoc* hDoc) override;
   void SetCurrentPage(CXFA_FFDoc* hDoc, int32_t iCurPage) override;
   FX_BOOL IsCalculationsEnabled(CXFA_FFDoc* hDoc) override;
   void SetCalculationsEnabled(CXFA_FFDoc* hDoc, FX_BOOL bEnabled) override;
   void GetTitle(CXFA_FFDoc* hDoc, CFX_WideString& wsTitle) override;
   void SetTitle(CXFA_FFDoc* hDoc, const CFX_WideString& wsTitle) override;
   void ExportData(CXFA_FFDoc* hDoc,
                   const CFX_WideString& wsFilePath,
                   FX_BOOL bXDP) override;
-  void GotoURL(CXFA_FFDoc* hDoc,
-               const CFX_WideString& bsURL,
-               FX_BOOL bAppend) override;
+  void GotoURL(CXFA_FFDoc* hDoc, const CFX_WideString& bsURL) override;
   FX_BOOL IsValidationsEnabled(CXFA_FFDoc* hDoc) override;
   void SetValidationsEnabled(CXFA_FFDoc* hDoc, FX_BOOL bEnabled) override;
   void SetFocusWidget(CXFA_FFDoc* hDoc, CXFA_FFWidget* hWidget) override;
   void Print(CXFA_FFDoc* hDoc,
              int32_t nStartPage,
              int32_t nEndPage,
              uint32_t dwOptions) override;
   FX_ARGB GetHighlightColor(CXFA_FFDoc* hDoc) override;
 
   /**
@@ skipping 35 matching lines @@
                            int fileType,
                            FPDF_DWORD encodeType,
                            FPDF_DWORD flag);
   void ToXFAContentFlags(CFX_WideString csSrcContent, FPDF_DWORD& flag);
 
   CPDFXFA_Document* const m_pDocument;  // Not owned;
   IJS_Context* m_pJSContext;
 };
 
 #endif  // FPDFSDK_FPDFXFA_INCLUDE_CPDFXFA_DOCENVIRONMENT_H_