Rename CPDFSDK_Environment to CPDFSDK_FormfillEnvironment

fpdfsdk/fpdfxfa/cpdfxfa_document.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 FPDFSDK_FPDFXFA_CPDFXFA_DOCUMENT_H_
 #define FPDFSDK_FPDFXFA_CPDFXFA_DOCUMENT_H_
 
 #include <memory>
 
 #include "fpdfsdk/fpdfxfa/cpdfxfa_docenvironment.h"
 #include "xfa/fxfa/xfa_ffdoc.h"
 
 class CPDFSDK_Document;
-class CPDFSDK_Environment;
+class CPDFSDK_FormfillEnvironment;
 class CPDFXFA_App;
 class CPDFXFA_Page;
 class CXFA_FFDocHandler;
 class IJS_Runtime;
 class IJS_Context;
 
 enum LoadStatus {
   FXFA_LOADSTATUS_PRELOAD = 0,
   FXFA_LOADSTATUS_LOADING,
   FXFA_LOADSTATUS_LOADED,
@@ skipping 57 matching lines @@
   CPDFXFA_App* const m_pApp;
   CFX_ArrayTemplate<CPDFXFA_Page*> m_XFAPageList;
   LoadStatus m_nLoadStatus;
   int m_nPageCount;
 
   // Must be destroy before |m_pSDKDoc|.
   CPDFXFA_DocEnvironment m_DocEnv;
 };
 
 #endif  // FPDFSDK_FPDFXFA_CPDFXFA_DOCUMENT_H_