Call CXFA_Object::ToNode() rather than C-style casting.

xfa/src/fxfa/src/parser/xfa_layout_itemlayout.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 <algorithm>
 
 #include "xfa/src/foxitlib.h"
 #include "xfa/src/fxfa/src/common/xfa_utils.h"
@@ skipping 1752 matching lines @@
     return fTotalHeight;
   }
   if (pProcessor->m_pLayoutItem == NULL) {
     pProcessor->m_pLayoutItem =
         pProcessor->CreateContentLayoutItem(pCurChildNode);
     pProcessor->m_pLayoutItem->m_sSize.Set(0, 0);
   }
   while (pProcessor->m_rgPendingNodes.GetCount() > 0) {
     FX_POSITION pos = pProcessor->m_rgPendingNodes.GetHeadPosition();
     CXFA_Node* pPendingNode =
-        (CXFA_Node*)pProcessor->m_rgPendingNodes.GetAt(pos);
+        reinterpret_cast<CXFA_Node*>(pProcessor->m_rgPendingNodes.GetAt(pos));
     pProcessor->m_rgPendingNodes.RemoveAt(pos);
     CXFA_ContentLayoutItem* pPendingLayoutItem = NULL;
     CXFA_ItemLayoutProcessor* pPendingProcessor =
         new CXFA_ItemLayoutProcessor(pPendingNode, NULL);
 #ifndef _XFA_LAYOUTITEM_ProcessCACHE_
     pPendingProcessor->m_pPageMgrCreateItem = pProcessor->m_pPageMgrCreateItem;
 #endif
     pPendingProcessor->DoLayout(FALSE, XFA_LAYOUT_FLOAT_MAX);
     pPendingLayoutItem = pPendingProcessor->HasLayoutItem()
                              ? pPendingProcessor->ExtractLayoutItem()
@@ skipping 1233 matching lines @@
         (int32_t)(uintptr_t)m_PendingNodesCount.GetValueAt(pTemplate);
     if (iCount >= iMax) {
       return FALSE;
     }
     iCount++;
     m_PendingNodesCount.SetAt(pTemplate, (void*)(uintptr_t)(iCount));
     return TRUE;
   }
   return TRUE;
 }