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

core/fxcodec/jbig2/JBig2_SddProc.cpp

Index: core/fxcodec/jbig2/JBig2_SddProc.cpp
diff --git a/core/fxcodec/jbig2/JBig2_SddProc.cpp b/core/fxcodec/jbig2/JBig2_SddProc.cpp
index 7e9ace204696c4db7228dc3500b1b8a1aaf925e7..d27ff680d5205c38e86cd2c5a51ba07140f7957b 100644
--- a/core/fxcodec/jbig2/JBig2_SddProc.cpp
+++ b/core/fxcodec/jbig2/JBig2_SddProc.cpp
@@ -18,6 +18,7 @@
 #include "core/fxcodec/jbig2/JBig2_SymbolDict.h"
 #include "core/fxcodec/jbig2/JBig2_TrdProc.h"
 #include "core/fxcrt/fx_basic.h"
+#include "third_party/base/ptr_util.h"
 
 CJBig2_SymbolDict* CJBig2_SDDProc::decode_Arith(
     CJBig2_ArithDecoder* pArithDecoder,
@@ -59,7 +60,7 @@ CJBig2_SymbolDict* CJBig2_SDDProc::decode_Arith(
   while ((uint32_t)(1 << nTmp) < (SDNUMINSYMS + SDNUMNEWSYMS)) {
     nTmp++;
   }
-  IAID.reset(new CJBig2_ArithIaidDecoder((uint8_t)nTmp));
+  IAID = pdfium::MakeUnique<CJBig2_ArithIaidDecoder>((uint8_t)nTmp);
   SDNEWSYMS = FX_Alloc(CJBig2_Image*, SDNUMNEWSYMS);
   FXSYS_memset(SDNEWSYMS, 0, SDNUMNEWSYMS * sizeof(CJBig2_Image*));
 
@@ -258,7 +259,7 @@ CJBig2_SymbolDict* CJBig2_SDDProc::decode_Arith(
     goto failed;
   }
 
-  pDict.reset(new CJBig2_SymbolDict);
+  pDict = pdfium::MakeUnique<CJBig2_SymbolDict>();
   I = J = 0;
   for (I = 0; I < SDNUMINSYMS + SDNUMNEWSYMS; I++) {
     if (EXFLAGS[I] && J < SDNUMEXSYMS) {
@@ -562,8 +563,8 @@ CJBig2_SymbolDict* CJBig2_SDDProc::decode_Huffman(
   }
   EXINDEX = 0;
   CUREXFLAG = 0;
-  pTable.reset(new CJBig2_HuffmanTable(HuffmanTable_B1, HuffmanTable_B1_Size,
-                                       HuffmanTable_HTOOB_B1));
+  pTable = pdfium::MakeUnique<CJBig2_HuffmanTable>(
+      HuffmanTable_B1, HuffmanTable_B1_Size, HuffmanTable_HTOOB_B1);
   EXFLAGS = FX_Alloc(bool, SDNUMINSYMS + SDNUMNEWSYMS);
   num_ex_syms = 0;
   while (EXINDEX < SDNUMINSYMS + SDNUMNEWSYMS) {