Use smart pointers for CFX_Font and CFX_Type3Font classes

core/fpdfapi/fpdf_font/cpdf_type3font.h

Index: core/fpdfapi/fpdf_font/cpdf_type3font.h
diff --git a/core/fpdfapi/fpdf_font/cpdf_type3font.h b/core/fpdfapi/fpdf_font/cpdf_type3font.h
index 70992c9c8ce7403c0f2035f30ba4a19bd2335dbe..c5e99534e0b4201ed7e9092af763428478a3004a 100644
--- a/core/fpdfapi/fpdf_font/cpdf_type3font.h
+++ b/core/fpdfapi/fpdf_font/cpdf_type3font.h
@@ -8,6 +8,7 @@
 #define CORE_FPDFAPI_FPDF_FONT_CPDF_TYPE3FONT_H_
 
 #include <map>
+#include <memory>
 
 #include "core/fpdfapi/fpdf_font/cpdf_simplefont.h"
 #include "core/fxcrt/include/fx_coordinates.h"
@@ -50,7 +51,7 @@ class CPDF_Type3Font : public CPDF_SimpleFont {
   CPDF_Dictionary* m_pCharProcs;
   CPDF_Dictionary* m_pPageResources;
   CPDF_Dictionary* m_pFontResources;
-  std::map<uint32_t, CPDF_Type3Char*> m_CacheMap;
+  std::map<uint32_t, std::unique_ptr<CPDF_Type3Char>> m_CacheMap;
 };
 
 #endif  // CORE_FPDFAPI_FPDF_FONT_CPDF_TYPE3FONT_H_