Make CPDF_Object subclass constructors intern strings

core/fpdfapi/parser/cpdf_name.cpp

Index: core/fpdfapi/parser/cpdf_name.cpp
diff --git a/core/fpdfapi/parser/cpdf_name.cpp b/core/fpdfapi/parser/cpdf_name.cpp
index bb464251177eeaaa12b9cc594b43d69c7cade01e..5be64d39d5875c82a13b08eef0f18b3a2e25be7e 100644
--- a/core/fpdfapi/parser/cpdf_name.cpp
+++ b/core/fpdfapi/parser/cpdf_name.cpp
@@ -9,7 +9,12 @@
 #include "core/fpdfapi/parser/fpdf_parser_decode.h"
 #include "third_party/base/ptr_util.h"
 
-CPDF_Name::CPDF_Name(const CFX_ByteString& str) : m_Name(str) {}
+CPDF_Name::CPDF_Name(CFX_WeakPtr<CFX_ByteStringPool> pPool,
+                     const CFX_ByteString& str)
+    : m_Name(str) {
+  if (pPool)
+    m_Name = pPool->Intern(m_Name);
+}
 
 CPDF_Name::~CPDF_Name() {}
 
@@ -18,7 +23,7 @@ CPDF_Object::Type CPDF_Name::GetType() const {
 }
 
 std::unique_ptr<CPDF_Object> CPDF_Name::Clone() const {
-  return pdfium::MakeUnique<CPDF_Name>(m_Name);
+  return pdfium::MakeUnique<CPDF_Name>(nullptr, m_Name);
 }
 
 CFX_ByteString CPDF_Name::GetString() const {