Make IFWL_Target::m_pImpl a private member.

xfa/src/fwl/src/basewidget/fwl_caretimp.cpp

Index: xfa/src/fwl/src/basewidget/fwl_caretimp.cpp
diff --git a/xfa/src/fwl/src/basewidget/fwl_caretimp.cpp b/xfa/src/fwl/src/basewidget/fwl_caretimp.cpp
index c0cc74b1bcf6dc4a04be8ca0cd13cefdfe352d5f..856ca026213014284fe2dd3f68c6aa332d1a8f2e 100644
--- a/xfa/src/fwl/src/basewidget/fwl_caretimp.cpp
+++ b/xfa/src/fwl/src/basewidget/fwl_caretimp.cpp
@@ -13,36 +13,31 @@ IFWL_Caret* IFWL_Caret::Create() {
   return new IFWL_Caret;
 }
 IFWL_Caret::IFWL_Caret() {
-  m_pImpl = NULL;
-}
-IFWL_Caret::~IFWL_Caret() {
-  if (m_pImpl) {
-    delete (CFWL_CaretImp*)m_pImpl;
-    m_pImpl = NULL;
-  }
 }
 FWL_ERR IFWL_Caret::Initialize(IFWL_Widget* pOuter) {
-  m_pImpl = new CFWL_CaretImp(pOuter);
-  ((CFWL_CaretImp*)m_pImpl)->SetInterface(this);
-  return ((CFWL_CaretImp*)m_pImpl)->Initialize();
+  CFWL_CaretImp* pCaretImpl = new CFWL_CaretImp(pOuter);
+  SetImpl(pCaretImpl);
+  pCaretImpl->SetInterface(this);
+  return pCaretImpl->Initialize();
 }
 FWL_ERR IFWL_Caret::Initialize(const CFWL_WidgetImpProperties& properties,
                                IFWL_Widget* pOuter) {
-  m_pImpl = new CFWL_CaretImp(properties, pOuter);
-  ((CFWL_CaretImp*)m_pImpl)->SetInterface(this);
-  return ((CFWL_CaretImp*)m_pImpl)->Initialize();
+  CFWL_CaretImp* pCaretImpl = new CFWL_CaretImp(properties, pOuter);
+  SetImpl(pCaretImpl);
+  pCaretImpl->SetInterface(this);
+  return pCaretImpl->Initialize();
 }
 FWL_ERR IFWL_Caret::ShowCaret(FX_BOOL bFlag) {
-  return ((CFWL_CaretImp*)m_pImpl)->ShowCaret(bFlag);
+  return static_cast<CFWL_CaretImp*>(GetImpl())->ShowCaret(bFlag);
 }
 FWL_ERR IFWL_Caret::GetFrequency(FX_DWORD& elapse) {
-  return ((CFWL_CaretImp*)m_pImpl)->GetFrequency(elapse);
+  return static_cast<CFWL_CaretImp*>(GetImpl())->GetFrequency(elapse);
 }
 FWL_ERR IFWL_Caret::SetFrequency(FX_DWORD elapse) {
-  return ((CFWL_CaretImp*)m_pImpl)->SetFrequency(elapse);
+  return static_cast<CFWL_CaretImp*>(GetImpl())->SetFrequency(elapse);
 }
 FWL_ERR IFWL_Caret::SetColor(CFX_Color crFill) {
-  return ((CFWL_CaretImp*)m_pImpl)->SetColor(crFill);
+  return static_cast<CFWL_CaretImp*>(GetImpl())->SetColor(crFill);
 }
 CFWL_CaretImp::CFWL_CaretImp(IFWL_Widget* pOuter) : m_hTimer(NULL) {
   m_dwElapse = 400;