Avoid the ptr.reset(new XXX()) anti-pattern

xfa/fde/cfde_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/fde/cfde_txtedtpage.h"
 
 #include <algorithm>
 
+#include "third_party/base/ptr_util.h"
 #include "xfa/fde/cfde_txtedtbuf.h"
 #include "xfa/fde/cfde_txtedtbufiter.h"
 #include "xfa/fde/cfde_txtedtengine.h"
 #include "xfa/fde/cfde_txtedtparag.h"
 #include "xfa/fde/cfde_txtedttextset.h"
 #include "xfa/fde/cfx_wordbreak.h"
 #include "xfa/fde/ifde_txtedtengine.h"
 #include "xfa/fde/ifde_txtedtpage.h"
 
 namespace {
@@ skipping 275 matching lines @@
   bool bLineReserve =
       !!(pParams->dwLayoutStyles & FDE_TEXTEDITLAYOUT_LineReserve);
   FX_FLOAT fLineStart =
       bVertial
           ? (bLineReserve ? (pParams->fPlateWidth - pParams->fLineSpace) : 0.0f)
           : 0.0f;
   FX_FLOAT fLineStep =
       (bVertial && bLineReserve) ? (-pParams->fLineSpace) : pParams->fLineSpace;
   FX_FLOAT fLinePos = fLineStart;
   if (!m_pTextSet)
-    m_pTextSet.reset(new CFDE_TxtEdtTextSet(this));
+    m_pTextSet = pdfium::MakeUnique<CFDE_TxtEdtTextSet>(this);
 
   m_PieceMassArr.RemoveAll(true);
   uint32_t dwBreakStatus = FX_TXTBREAK_None;
   int32_t nPieceStart = 0;
 
   m_CharWidths.resize(nPageEnd - nPageStart + 1, 0);
   pBreak->EndBreak(FX_TXTBREAK_ParagraphBreak);
   pBreak->ClearBreakPieces();
   m_nPageStart = nPageStart;
   m_nCharCount = nPageEnd - nPageStart + 1;
@@ skipping 191 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;
   }
 }