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

xfa/fxbarcode/BC_TwoDimWriter.cpp

Index: xfa/fxbarcode/BC_TwoDimWriter.cpp
diff --git a/xfa/fxbarcode/BC_TwoDimWriter.cpp b/xfa/fxbarcode/BC_TwoDimWriter.cpp
index ec6c3626b2a574a84fc3f8323692937e21e8b31f..84678a81daff2aff64aa1ae597d8b802d52d4c9b 100644
--- a/xfa/fxbarcode/BC_TwoDimWriter.cpp
+++ b/xfa/fxbarcode/BC_TwoDimWriter.cpp
@@ -10,6 +10,7 @@
 #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"
@@ -134,7 +135,7 @@ void CBC_TwoDimWriter::RenderResult(uint8_t* code,
   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);