Store WideString, not raw pointer, in FX_TXTRUN

xfa/fee/fde_txtedtpage.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/fee/fde_txtedtpage.h"
 
 #include <algorithm>
 
@@ skipping 63 matching lines @@
   if (nLength < 1) {
     return 0;
   }
   CFDE_TxtEdtEngine* pEngine = (CFDE_TxtEdtEngine*)(m_pPage->GetEngine());
   const FDE_TXTEDTPARAMS* pTextParams = pEngine->GetEditParams();
   CFX_TxtBreak* pBreak = pEngine->GetTextBreak();
   uint32_t dwLayoutStyle = pBreak->GetLayoutStyles();
   FX_TXTRUN tr;
   tr.pAccess = m_pPage;
   tr.pIdentity = (void*)hText;
-  tr.pStr = NULL;
-  tr.pWidths = NULL;
   tr.iLength = nLength;
   tr.pFont = pTextParams->pFont;
   tr.fFontSize = pTextParams->fFontSize;
   tr.dwStyles = dwLayoutStyle;
   tr.iCharRotation = pTextParams->nCharRotation;
   tr.dwCharStyles = pPiece->dwCharStyles;
   tr.pRect = &(pPiece->rtPiece);
   tr.wLineBreakChar = pTextParams->wLineBreakChar;
   return pBreak->GetDisplayPos(&tr, pCharPos, bCharCode, pWSForms);
 }
@@ skipping 11 matching lines @@
   CFDE_TxtEdtEngine* pEngine = (CFDE_TxtEdtEngine*)(m_pPage->GetEngine());
   int32_t nLength = pPiece->nCount;
   if (nLength < 1) {
     return 0;
   }
   const FDE_TXTEDTPARAMS* pTextParams = pEngine->GetEditParams();
   uint32_t dwLayoutStyle = pEngine->GetTextBreak()->GetLayoutStyles();
   FX_TXTRUN tr;
   tr.pAccess = m_pPage;
   tr.pIdentity = (void*)hText;
-  tr.pStr = NULL;
-  tr.pWidths = NULL;
   tr.iLength = nLength;
   tr.pFont = pTextParams->pFont;
   tr.fFontSize = pTextParams->fFontSize;
   tr.dwStyles = dwLayoutStyle;
   tr.iCharRotation = pTextParams->nCharRotation;
   tr.dwCharStyles = pPiece->dwCharStyles;
   tr.pRect = &(pPiece->rtPiece);
   tr.wLineBreakChar = pTextParams->wLineBreakChar;
   return pEngine->GetTextBreak()->GetCharRects(&tr, rtArray, bBBox);
 }
@@ skipping 512 matching lines @@
     ptF.x = rtF.left;
   } else if (ptF.x >= rtF.right()) {
     ptF.x = rtF.right() - fTolerance;
   }
   if (ptF.y < rtF.top) {
     ptF.y = rtF.top;
   } else if (ptF.y >= rtF.bottom()) {
     ptF.y = rtF.bottom() - fTolerance;
   }
 }