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

core/fpdfdoc/cpvt_sectioninfo.cpp

Index: core/fpdfdoc/cpvt_sectioninfo.cpp
diff --git a/core/fpdfdoc/cpvt_sectioninfo.cpp b/core/fpdfdoc/cpvt_sectioninfo.cpp
index eb5c1bb8092a2707f9b572fe6a4ffd4d7fb0be4e..ec0262c1a02292eb4df4d037dee907323c8bac33 100644
--- a/core/fpdfdoc/cpvt_sectioninfo.cpp
+++ b/core/fpdfdoc/cpvt_sectioninfo.cpp
@@ -5,6 +5,7 @@
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
 #include "core/fpdfdoc/cpvt_sectioninfo.h"
+#include "third_party/base/ptr_util.h"
 
 CPVT_SectionInfo::CPVT_SectionInfo() : rcSection(), nTotalLine(0) {}
 
@@ -21,11 +22,12 @@ void CPVT_SectionInfo::operator=(const CPVT_SectionInfo& other) {
   rcSection = other.rcSection;
   nTotalLine = other.nTotalLine;
   if (other.pSecProps)
-    pSecProps.reset(new CPVT_SecProps(*other.pSecProps));
+    pSecProps = pdfium::MakeUnique<CPVT_SecProps>(*other.pSecProps);
   else
     pSecProps.reset();
+
   if (other.pWordProps)
-    pWordProps.reset(new CPVT_WordProps(*other.pWordProps));
+    pWordProps = pdfium::MakeUnique<CPVT_WordProps>(*other.pWordProps);
   else
     pWordProps.reset();
 }