Revert of Remove an unnecessary variable from CPDF_Creator

core/fpdfapi/fpdf_edit/fpdf_edit_create.cpp

Index: core/fpdfapi/fpdf_edit/fpdf_edit_create.cpp
diff --git a/core/fpdfapi/fpdf_edit/fpdf_edit_create.cpp b/core/fpdfapi/fpdf_edit/fpdf_edit_create.cpp
index 7604c6224051bbb48420f99145a7a55d4dd810c6..372506d6cce649e0346ea091576e2e6d6fe4f4d4 100644
--- a/core/fpdfapi/fpdf_edit/fpdf_edit_create.cpp
+++ b/core/fpdfapi/fpdf_edit/fpdf_edit_create.cpp
@@ -881,10 +881,8 @@
       m_bSecurityChanged(FALSE),
       m_pEncryptDict(m_pParser ? m_pParser->GetEncryptDict() : nullptr),
       m_dwEncryptObjNum(0),
-      m_bEncryptCloned(FALSE),
       m_pCryptoHandler(m_pParser ? m_pParser->GetCryptoHandler() : nullptr),
       m_pMetadata(nullptr),
-      m_pXRefStream(nullptr),
       m_ObjectStreamSize(200),
       m_dwLastObjNum(m_pDocument->GetLastObjNum()),
       m_Offset(0),
@@ -1961,9 +1959,11 @@
       CPDF_SecurityHandler handler;
       handler.OnCreate(m_pEncryptDict, m_pIDArray, user_pass.raw_str(),
                        user_pass.GetLength(), flag);
-      delete m_pCryptoHandler;
+      if (m_bLocalCryptoHandler)
+        delete m_pCryptoHandler;
       m_pCryptoHandler = new CPDF_CryptoHandler;
       m_pCryptoHandler->Init(m_pEncryptDict, &handler);
+      m_bLocalCryptoHandler = TRUE;
       m_bSecurityChanged = TRUE;
     }
   }
@@ -2008,6 +2008,10 @@
   m_pCryptoHandler = nullptr;
 }
 void CPDF_Creator::ResetStandardSecurity() {
+  if (!m_bLocalCryptoHandler)
+    return;
+
   delete m_pCryptoHandler;
   m_pCryptoHandler = nullptr;
-}
+  m_bLocalCryptoHandler = FALSE;
+}