Make CPDF_Dictionary use unique pointers.

core/fpdfapi/font/cpdf_font.cpp

Index: core/fpdfapi/font/cpdf_font.cpp
diff --git a/core/fpdfapi/font/cpdf_font.cpp b/core/fpdfapi/font/cpdf_font.cpp
index c5da4ea519634946d0373b995d485f4b7b330f73..bbcecbbacabd9252593f9bfe96ddc5d671c1e117 100644
--- a/core/fpdfapi/font/cpdf_font.cpp
+++ b/core/fpdfapi/font/cpdf_font.cpp
@@ -310,10 +310,10 @@ CPDF_Font* CPDF_Font::GetStockFont(CPDF_Document* pDoc,
     return pFont;
 
   CPDF_Dictionary* pDict = new CPDF_Dictionary(pDoc->GetByteStringPool());
-  pDict->SetNameFor("Type", "Font");
-  pDict->SetNameFor("Subtype", "Type1");
-  pDict->SetNameFor("BaseFont", fontname);
-  pDict->SetNameFor("Encoding", "WinAnsiEncoding");
+  pDict->SetNewFor<CPDF_Name>("Type", "Font");
+  pDict->SetNewFor<CPDF_Name>("Subtype", "Type1");
+  pDict->SetNewFor<CPDF_Name>("BaseFont", fontname);
+  pDict->SetNewFor<CPDF_Name>("Encoding", "WinAnsiEncoding");
   return pFontGlobals->Set(pDoc, font_id, CPDF_Font::Create(nullptr, pDict));
 }