Make CPDF_Dictionary use unique pointers.

core/fpdfapi/page/cpdf_streamparser.cpp

Index: core/fpdfapi/page/cpdf_streamparser.cpp
diff --git a/core/fpdfapi/page/cpdf_streamparser.cpp b/core/fpdfapi/page/cpdf_streamparser.cpp
index 2c2be0bd2749b1e9d0c1cdc628dec46cb7a2cae7..4cdb942959028ab3293ee9d81eac937707a8abab 100644
--- a/core/fpdfapi/page/cpdf_streamparser.cpp
+++ b/core/fpdfapi/page/cpdf_streamparser.cpp
@@ -230,7 +230,7 @@ CPDF_Stream* CPDF_StreamParser::ReadInlineStream(CPDF_Document* pDoc,
     FXSYS_memcpy(pData, m_pBuf + m_Pos, dwStreamSize);
     m_Pos += dwStreamSize;
   }
-  pDict->SetIntegerFor("Length", (int)dwStreamSize);
+  pDict->SetNewFor<CPDF_Number>("Length", (int)dwStreamSize);
   return new CPDF_Stream(pData, dwStreamSize, pDict);
 }
 
@@ -361,16 +361,13 @@ CPDF_Object* CPDF_StreamParser::ReadNextObject(bool bAllowNestedArray,
 
       CFX_ByteString key =
           PDF_NameDecode(CFX_ByteStringC(m_WordBuffer + 1, m_WordSize - 1));
-      CPDF_Object* pObj = ReadNextObject(true, 0);
+      auto pObj = pdfium::WrapUnique(ReadNextObject(true, 0));
       if (!pObj) {
         delete pDict;
         return nullptr;
       }
-
-      if (key.IsEmpty())
-        delete pObj;
-      else
-        pDict->SetFor(key, pObj);
+      if (!key.IsEmpty())
+        pDict->SetFor(key, std::move(pObj));
     }
     return pDict;
   }