FWL refcounts never incremented (part 2).

xfa/src/fwl/src/core/fwl_noteimp.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 "../../../foxitlib.h"
 #include "include/fwl_targetimp.h"
 #include "include/fwl_widgetimp.h"
 #include "include/fwl_widgetmgrimp.h"
@@ skipping 973 matching lines @@
 FX_BOOL CFWL_ToolTipContainer::ProcessEnter(CFWL_EvtMouse* pEvt,
                                             IFWL_Widget* pOwner) {
   if (HasToolTip(pEvt->m_pDstTarget)) {
     if (NULL == m_pToolTipImp) {
       CFWL_WidgetImpProperties prop;
       prop.m_pDataProvider = m_ToolTipDp;
       prop.m_pOwner = pOwner;
       CFX_RectF rtTooltip;
       rtTooltip.Set(150, 150, 100, 50);
       prop.m_rtWidget = rtTooltip;
-      m_pToolTipImp = new CFWL_ToolTipImp(prop);
-      IFWL_ToolTip* pToolTip = new IFWL_ToolTip;
-      m_pToolTipImp->SetInterface(pToolTip);
-      pToolTip->SetImpl(m_pToolTipImp);
-      m_pToolTipImp->Initialize();
+      IFWL_ToolTip* pToolTip = IFWL_ToolTip::Create(prop, nullptr);
+      pToolTip->Initialize();
+      m_pToolTipImp = static_cast<CFWL_ToolTipImp*>(pToolTip->GetImpl());
       m_pToolTipImp->ModifyStylesEx(FWL_STYLEEXT_TTP_Multiline, 0);
       m_pToolTipImp->SetStates(FWL_WGTSTATE_Invisible, TRUE);
     }
     if (pCurTarget->IsShowed()) {
       CFX_WideString wsCaption;
       pCurTarget->GetCaption(wsCaption);
       if (!wsCaption.IsEmpty()) {
         m_ToolTipDp->m_wsCaption = wsCaption;
       }
       CFX_RectF rt;
@@ skipping 81 matching lines @@
     return NULL;
   return widget->GetInterface();
 }
 FWL_ERR FWL_SetHook(IFWL_NoteDriver* driver,
                     FWLMessageHookCallback callback,
                     void* info) {
   CFWL_NoteDriver* noteDriver = (CFWL_NoteDriver*)driver;
   noteDriver->SetHook(callback, info);
   return FWL_ERR_Succeeded;
 }