Remove implicit cast from CFX_WideString to (const wchar_t*)

xfa/fxfa/app/xfa_ffdocview.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/include/xfa_ffdocview.h"
 
 #include "core/fxcrt/include/fx_ext.h"
 #include "xfa/fxfa/app/xfa_ffbarcode.h"
@@ skipping 139 matching lines @@
     iCount -= iRemain;
     CFX_WideString wsMsg;
     for (int32_t i = 0; i < iCount; i++) {
       wsMsg += m_arrNullTestMsg[i] + FX_WSTRC(L"\n");
     }
     if (iRemain > 0) {
       CFX_WideString wsLimit;
       pAppProvider->LoadString(XFA_IDS_ValidateLimit, wsLimit);
       if (!wsLimit.IsEmpty()) {
         CFX_WideString wsTemp;
-        wsTemp.Format((const FX_WCHAR*)wsLimit, iRemain);
+        wsTemp.Format(wsLimit.c_str(), iRemain);
         wsMsg += FX_WSTRC(L"\n") + wsTemp;
       }
     }
     CFX_WideString wsTitle;
     pAppProvider->LoadString(XFA_IDS_AppName, wsTitle);
     pAppProvider->MsgBox(wsMsg.AsStringC(), wsTitle.AsStringC(),
                          XFA_MBICON_Status, XFA_MB_OK);
   }
   m_arrNullTestMsg.RemoveAll();
 }
@@ skipping 614 matching lines @@
     }
     CFX_WideStringC wsValueRef, wsLabelRef;
     binditems.GetValueRef(wsValueRef);
     binditems.GetLabelRef(wsLabelRef);
     const bool bUseValue = wsLabelRef.IsEmpty() || wsLabelRef == wsValueRef;
     const bool bLabelUseContent =
         wsLabelRef.IsEmpty() || wsLabelRef == FX_WSTRC(L"$");
     const bool bValueUseContent =
         wsValueRef.IsEmpty() || wsValueRef == FX_WSTRC(L"$");
     CFX_WideString wsValue, wsLabel;
-    uint32_t uValueHash = FX_HashCode_String_GetW(CFX_WideString(wsValueRef),
-                                                  wsValueRef.GetLength());
+    uint32_t uValueHash =
+        FX_HashCode_String_GetW(wsValueRef.c_str(), wsValueRef.GetLength());
     for (int32_t i = 0; i < iCount; i++) {
       CXFA_Object* refObj = rs.nodes[i];
       if (!refObj->IsNode()) {
         continue;
       }
       CXFA_Node* refNode = refObj->AsNode();
       if (bValueUseContent) {
         wsValue = refNode->GetContent();
       } else {
         CXFA_Node* nodeValue = refNode->GetFirstChildByName(uValueHash);
@@ skipping 111 matching lines @@
 CXFA_WidgetAcc* CXFA_WidgetAccIterator::GetCurrentWidgetAcc() {
   return NULL;
 }
 FX_BOOL CXFA_WidgetAccIterator::SetCurrentWidgetAcc(CXFA_WidgetAcc* hWidget) {
   return FALSE;
 }
 void CXFA_WidgetAccIterator::SkipTree() {
   m_ContentIterator.SkipChildrenAndMoveToNext();
   m_pCurWidgetAcc = NULL;
 }