Split off IPDF_CryptoHandler into its own .cpp/.h files

core/src/fpdfapi/fpdf_parser/cpdf_standard_crypto_handler.cpp

Index: core/src/fpdfapi/fpdf_parser/cpdf_standard_crypto_handler.cpp
diff --git a/core/src/fpdfapi/fpdf_parser/fpdf_parser_encrypt.cpp b/core/src/fpdfapi/fpdf_parser/cpdf_standard_crypto_handler.cpp
similarity index 98%
rename from core/src/fpdfapi/fpdf_parser/fpdf_parser_encrypt.cpp
rename to core/src/fpdfapi/fpdf_parser/cpdf_standard_crypto_handler.cpp
index 5d710657be79ef7072053f6b692659f93c068d6b..954cea379805dafa5f91f7bd7901c53348764faf 100644
--- a/core/src/fpdfapi/fpdf_parser/fpdf_parser_encrypt.cpp
+++ b/core/src/fpdfapi/fpdf_parser/cpdf_standard_crypto_handler.cpp
@@ -4,20 +4,16 @@
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#include "core/include/fpdfapi/fpdf_parser.h"
+#include "core/src/fpdfapi/fpdf_parser/cpdf_standard_crypto_handler.h"
+
+#include <time.h>
 
+#include "core/include/fpdfapi/fpdf_parser.h"
 #include "core/include/fpdfapi/cpdf_parser.h"
 #include "core/include/fpdfapi/cpdf_simple_parser.h"
 #include "core/include/fpdfapi/ipdf_security_handler.h"
 #include "core/include/fdrm/fx_crypt.h"
 
-struct PDF_CRYPTOITEM {
-  int32_t m_Cipher;
-  int32_t m_KeyLen;
-  FX_BOOL m_bChecked;
-  CPDF_StandardCryptoHandler* m_pCryptoHandler;
-};
-
 void CPDF_StandardCryptoHandler::CryptBlock(FX_BOOL bEncrypt,
                                             FX_DWORD objnum,
                                             FX_DWORD gennum,
@@ -325,7 +321,7 @@ FX_BOOL CPDF_StandardCryptoHandler::EncryptContent(FX_DWORD objnum,
   CryptBlock(TRUE, objnum, gennum, src_buf, src_size, dest_buf, dest_size);
   return TRUE;
 }
-void CPDF_CryptoHandler::Decrypt(FX_DWORD objnum,
+void IPDF_CryptoHandler::Decrypt(FX_DWORD objnum,
                                  FX_DWORD gennum,
                                  CFX_ByteString& str) {
   CFX_BinaryBuf dest_buf;