Cleanup env variable names

fpdfsdk/cfx_systemhandler.cpp

Index: fpdfsdk/cfx_systemhandler.cpp
diff --git a/fpdfsdk/cfx_systemhandler.cpp b/fpdfsdk/cfx_systemhandler.cpp
index 62bad46ba00104fde752f0f1b5470754c404fbf1..541ef2ba647dd7bbcf88ae47a01f4f7a58df181b 100644
--- a/fpdfsdk/cfx_systemhandler.cpp
+++ b/fpdfsdk/cfx_systemhandler.cpp
@@ -57,7 +57,8 @@ void CFX_SystemHandler::InvalidateRect(CPDFSDK_Widget* widget, FX_RECT rect) {
   CFX_FloatRect rcPDF(left, bottom, right, top);
   rcPDF.Normalize();
 
-  m_pEnv->Invalidate(pPage, rcPDF.left, rcPDF.top, rcPDF.right, rcPDF.bottom);
+  m_pFormFillEnv->Invalidate(pPage, rcPDF.left, rcPDF.top, rcPDF.right,
+                             rcPDF.bottom);
 }
 
 void CFX_SystemHandler::OutputSelectedRect(CFFL_FormFiller* pFormFiller,
@@ -74,19 +75,19 @@ void CFX_SystemHandler::OutputSelectedRect(CFFL_FormFiller* pFormFiller,
   UnderlyingPageType* pPage = pAnnot->GetUnderlyingPage();
   ASSERT(pPage);
 
-  m_pEnv->OutputSelectedRect(pPage, ptA.x, ptB.y, ptB.x, ptA.y);
+  m_pFormFillEnv->OutputSelectedRect(pPage, ptA.x, ptB.y, ptB.x, ptA.y);
 }
 
 bool CFX_SystemHandler::IsSelectionImplemented() const {
-  if (!m_pEnv)
+  if (!m_pFormFillEnv)
     return false;
 
-  FPDF_FORMFILLINFO* pInfo = m_pEnv->GetFormFillInfo();
+  FPDF_FORMFILLINFO* pInfo = m_pFormFillEnv->GetFormFillInfo();
   return pInfo && pInfo->FFI_OutputSelectedRect;
 }
 
 void CFX_SystemHandler::SetCursor(int32_t nCursorType) {
-  m_pEnv->SetCursor(nCursorType);
+  m_pFormFillEnv->SetCursor(nCursorType);
 }
 
 bool CFX_SystemHandler::FindNativeTrueTypeFont(CFX_ByteString sFontFaceName) {
@@ -126,21 +127,21 @@ CPDF_Font* CFX_SystemHandler::AddNativeTrueTypeFontToPDF(
 
 int32_t CFX_SystemHandler::SetTimer(int32_t uElapse,
                                     TimerCallback lpTimerFunc) {
-  return m_pEnv->SetTimer(uElapse, lpTimerFunc);
+  return m_pFormFillEnv->SetTimer(uElapse, lpTimerFunc);
 }
 
 void CFX_SystemHandler::KillTimer(int32_t nID) {
-  m_pEnv->KillTimer(nID);
+  m_pFormFillEnv->KillTimer(nID);
 }
 
 bool CFX_SystemHandler::IsSHIFTKeyDown(uint32_t nFlag) const {
-  return !!m_pEnv->IsSHIFTKeyDown(nFlag);
+  return !!m_pFormFillEnv->IsSHIFTKeyDown(nFlag);
 }
 
 bool CFX_SystemHandler::IsCTRLKeyDown(uint32_t nFlag) const {
-  return !!m_pEnv->IsCTRLKeyDown(nFlag);
+  return !!m_pFormFillEnv->IsCTRLKeyDown(nFlag);
 }
 
 bool CFX_SystemHandler::IsALTKeyDown(uint32_t nFlag) const {
-  return !!m_pEnv->IsALTKeyDown(nFlag);
+  return !!m_pFormFillEnv->IsALTKeyDown(nFlag);
 }