Get rid of NULLs in core/

xfa/fwl/basewidget/fwl_datetimepickerimp.cpp

 // 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
 
 #include "xfa/fwl/basewidget/fwl_datetimepickerimp.h"
 
 #include "xfa/fwl/basewidget/fwl_editimp.h"
 #include "xfa/fwl/basewidget/fwl_formproxyimp.h"
@@ skipping 408 matching lines @@
 }
 
 CFWL_DateTimePickerImp::CFWL_DateTimePickerImp(
     const CFWL_WidgetImpProperties& properties,
     IFWL_Widget* pOuter)
     : CFWL_WidgetImp(properties, pOuter),
       m_iBtnState(1),
       m_iYear(-1),
       m_iMonth(-1),
       m_iDay(-1),
-      m_bLBtnDown(FALSE),
-      m_pEdit(nullptr),
-      m_pMonthCal(nullptr),
-      m_pForm(nullptr) {
+      m_bLBtnDown(FALSE) {
   m_rtBtn.Set(0, 0, 0, 0);
 }
 
 CFWL_DateTimePickerImp::~CFWL_DateTimePickerImp() {}
 
 FWL_Error CFWL_DateTimePickerImp::GetClassName(CFX_WideString& wsClass) const {
   wsClass = FWL_CLASS_DateTimePicker;
   return FWL_Error::Succeeded;
 }
 
@@ skipping 734 matching lines @@
     }
     if (m_pOwner->m_pEdit->GetStates() & FWL_WGTSTATE_Focused) {
       pMsg->m_pSrcTarget = m_pOwner->m_pEdit.get();
       IFWL_WidgetDelegate* pDelegate = m_pOwner->m_pEdit->SetDelegate(NULL);
       pDelegate->OnProcessMessage(pMsg);
     }
   }
   rtInvalidate.Inflate(2, 2);
   m_pOwner->Repaint(&rtInvalidate);
 }