Rename CPDFSDK_Environment to CPDFSDK_FormfillEnvironment

fpdfsdk/cpdfsdk_document.h

Index: fpdfsdk/cpdfsdk_document.h
diff --git a/fpdfsdk/cpdfsdk_document.h b/fpdfsdk/cpdfsdk_document.h
index 561bfc198d6d3cf4fccc5e95099f28de5ec04392..921a8df972094cb4babc7350abcbfef580f5f4c0 100644
--- a/fpdfsdk/cpdfsdk_document.h
+++ b/fpdfsdk/cpdfsdk_document.h
@@ -17,7 +17,7 @@
 #include "public/fpdf_formfill.h"
 
 class CPDF_OCContext;
-class CPDFSDK_Environment;
+class CPDFSDK_FormFillEnvironment;
 class CPDFSDK_InterForm;
 class CPDFSDK_PageView;
 class IJS_Runtime;
@@ -26,7 +26,8 @@ class CPDFSDK_Document : public CFX_Observable<CPDFSDK_Document> {
  public:
   static CPDFSDK_Document* FromFPDFFormHandle(FPDF_FORMHANDLE hHandle);
 
-  CPDFSDK_Document(UnderlyingDocumentType* pDoc, CPDFSDK_Environment* pEnv);
+  CPDFSDK_Document(UnderlyingDocumentType* pDoc,
+                   CPDFSDK_FormFillEnvironment* pEnv);
   ~CPDFSDK_Document();
 
   CPDFSDK_InterForm* GetInterForm();
@@ -89,7 +90,7 @@ class CPDFSDK_Document : public CFX_Observable<CPDFSDK_Document> {
   void ClearChangeMark() { m_bChangeMask = FALSE; }
   CFX_WideString GetPath();
   UnderlyingPageType* GetPage(int nIndex);
-  CPDFSDK_Environment* GetEnv() { return m_pEnv; }
+  CPDFSDK_FormFillEnvironment* GetEnv() { return m_pEnv; }
   void ProcJavascriptFun();
   FX_BOOL ProcOpenAction();
   CPDF_OCContext* GetOCContext();
@@ -99,7 +100,7 @@ class CPDFSDK_Document : public CFX_Observable<CPDFSDK_Document> {
   UnderlyingDocumentType* m_pDoc;
   std::unique_ptr<CPDFSDK_InterForm> m_pInterForm;
   CPDFSDK_Annot::ObservedPtr m_pFocusAnnot;
-  CPDFSDK_Environment* m_pEnv;
+  CPDFSDK_FormFillEnvironment* m_pEnv;
   std::unique_ptr<CPDF_OCContext> m_pOccontent;
   FX_BOOL m_bChangeMask;
   FX_BOOL m_bBeingDestroyed;