Remove implicit cast from CFX_WideString to (const wchar_t*)

xfa/fxfa/parser/xfa_document_datamerger_imp.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/fxfa/parser/xfa_document_datamerger_imp.h"
 
 #include "core/fxcrt/include/fx_ext.h"
 #include "xfa/fde/xml/fde_xml_imp.h"
@@ skipping 545 matching lines @@
   }
   return pNewNode;
 }
 static CXFA_Node* XFA_NodeMerge_CloneOrMergeInstanceManager(
     CXFA_Document* pDocument,
     CXFA_Node* pFormParent,
     CXFA_Node* pTemplateNode,
     CXFA_NodeArray& subforms) {
   CFX_WideStringC wsSubformName = pTemplateNode->GetCData(XFA_ATTRIBUTE_Name);
   CFX_WideString wsInstMgrNodeName = FX_WSTRC(L"_") + wsSubformName;
-  uint32_t dwInstNameHash =
-      FX_HashCode_String_GetW(wsInstMgrNodeName, wsInstMgrNodeName.GetLength());
+  uint32_t dwInstNameHash = FX_HashCode_String_GetW(
+      wsInstMgrNodeName.c_str(), wsInstMgrNodeName.GetLength());
   CXFA_Node* pExistingNode = XFA_DataMerge_FindFormDOMInstance(
       pDocument, XFA_ELEMENT_InstanceManager, dwInstNameHash, pFormParent);
   if (pExistingNode) {
     uint32_t dwNameHash = pTemplateNode->GetNameHash();
     for (CXFA_Node* pNode =
              pExistingNode->GetNodeItem(XFA_NODEITEM_NextSibling);
          pNode;) {
       XFA_ELEMENT eCurType = pNode->GetClassID();
       if (eCurType == XFA_ELEMENT_InstanceManager) {
         break;
@@ skipping 847 matching lines @@
     }
     pFormRoot->SetObject(XFA_ATTRIBUTE_BindingNode, NULL);
   }
   XFA_DataMerge_ClearGlobalBinding(this);
   if (bDoDataMerge) {
     DoDataMerge();
   }
   CXFA_LayoutProcessor* pLayoutProcessor = GetLayoutProcessor();
   pLayoutProcessor->SetForceReLayout(TRUE);
 }