Cleanup env variable names

fpdfsdk/cpdfsdk_formfillenvironment.cpp

Index: fpdfsdk/cpdfsdk_formfillenvironment.cpp
diff --git a/fpdfsdk/cpdfsdk_formfillenvironment.cpp b/fpdfsdk/cpdfsdk_formfillenvironment.cpp
index 7c994727381bebce30b4bcfeb4c474f26d669e90..ec7aac9ba49bceadc5cec924cd82606f0486461d 100644
--- a/fpdfsdk/cpdfsdk_formfillenvironment.cpp
+++ b/fpdfsdk/cpdfsdk_formfillenvironment.cpp
@@ -53,7 +53,7 @@ CPDFSDK_FormFillEnvironment::~CPDFSDK_FormFillEnvironment() {
 
 #ifdef PDF_ENABLE_XFA
   CPDFXFA_App* pProvider = CPDFXFA_App::GetInstance();
-  if (pProvider->m_pEnvList.GetSize() == 0)
+  if (pProvider->m_pFormFillEnvList.GetSize() == 0)
     pProvider->SetJavaScriptInitialized(FALSE);
 #endif  // PDF_ENABLE_XFA
   if (m_pInfo && m_pInfo->Release)
@@ -582,7 +582,7 @@ CPDFSDK_PageView* CPDFSDK_FormFillEnvironment::GetPageView(
   if (!ReNew)
     return nullptr;
 
-  CPDFSDK_PageView* pPageView = new CPDFSDK_PageView(GetEnv(), pUnderlyingPage);
+  CPDFSDK_PageView* pPageView = new CPDFSDK_PageView(this, pUnderlyingPage);
   m_pageMap[pUnderlyingPage] = pPageView;
   // Delay to load all the annotations, to avoid endless loop.
   pPageView->LoadFXAnnots();
@@ -616,7 +616,7 @@ void CPDFSDK_FormFillEnvironment::ProcJavascriptFun() {
     CPDF_Action jsAction = docJS.GetJSAction(i, csJSName);
     if (GetActionHander()) {
       GetActionHander()->DoAction_JavaScript(
-          jsAction, CFX_WideString::FromLocal(csJSName.AsStringC()), GetEnv());
+          jsAction, CFX_WideString::FromLocal(csJSName.AsStringC()), this);
     }
   }
 }
@@ -642,7 +642,7 @@ FX_BOOL CPDFSDK_FormFillEnvironment::ProcOpenAction() {
   if (CPDF_Dictionary* pDict = pOpenAction->AsDictionary()) {
     CPDF_Action action(pDict);
     if (GetActionHander())
-      GetActionHander()->DoAction_DocOpen(action, GetEnv());
+      GetActionHander()->DoAction_DocOpen(action, this);
     return TRUE;
   }
   return FALSE;
@@ -683,7 +683,7 @@ UnderlyingPageType* CPDFSDK_FormFillEnvironment::GetPage(int nIndex) {
 
 CPDFSDK_InterForm* CPDFSDK_FormFillEnvironment::GetInterForm() {
   if (!m_pInterForm)
-    m_pInterForm = pdfium::MakeUnique<CPDFSDK_InterForm>(GetEnv());
+    m_pInterForm = pdfium::MakeUnique<CPDFSDK_InterForm>(this);
   return m_pInterForm.get();
 }