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

xfa/fxbarcode/BC_TwoDimWriter.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 "core/fxge/cfx_graphstatedata.h"
 #include "core/fxge/cfx_pathdata.h"
 #include "core/fxge/cfx_renderdevice.h"
 #include "third_party/base/numerics/safe_math.h"
+#include "third_party/base/ptr_util.h"
 #include "xfa/fxbarcode/BC_TwoDimWriter.h"
 #include "xfa/fxbarcode/BC_Writer.h"
 #include "xfa/fxbarcode/common/BC_CommonBitMatrix.h"
 
 CBC_TwoDimWriter::CBC_TwoDimWriter() : m_iCorrectLevel(1), m_bFixedSize(true) {}
 
 CBC_TwoDimWriter::~CBC_TwoDimWriter() {}
 
 void CBC_TwoDimWriter::RenderDeviceResult(CFX_RenderDevice* device,
                                           const CFX_Matrix* matrix) {
@@ skipping 104 matching lines @@
     multiY = multiX;
   }
   int32_t leftPadding = (outputWidth - (inputWidth * multiX)) / 2;
   int32_t topPadding = (outputHeight - (inputHeight * multiY)) / 2;
   if (leftPadding < 0) {
     leftPadding = 0;
   }
   if (topPadding < 0) {
     topPadding = 0;
   }
-  m_output.reset(new CBC_CommonBitMatrix);
+  m_output = pdfium::MakeUnique<CBC_CommonBitMatrix>();
   m_output->Init(outputWidth, outputHeight);
   for (int32_t inputY = 0, outputY = topPadding;
        (inputY < inputHeight) && (outputY < outputHeight - multiY);
        inputY++, outputY += multiY) {
     for (int32_t inputX = 0, outputX = leftPadding;
          (inputX < inputWidth) && (outputX < outputWidth - multiX);
          inputX++, outputX += multiX) {
       if (code[inputX + inputY * inputWidth] == 1) {
         m_output->SetRegion(outputX, outputY, multiX, multiY, e);
         BC_EXCEPTION_CHECK_ReturnVoid(e);
       }
     }
   }
 }