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

core/src/fpdfapi/fpdf_parser/cpdf_standard_crypto_handler.h

Index: core/src/fpdfapi/fpdf_parser/cpdf_standard_crypto_handler.h
diff --git a/core/src/fpdfapi/fpdf_parser/cpdf_standard_crypto_handler.h b/core/src/fpdfapi/fpdf_parser/cpdf_standard_crypto_handler.h
new file mode 100644
index 0000000000000000000000000000000000000000..3ef1f7143f448847e29057546fc428916f7f7549
--- /dev/null
+++ b/core/src/fpdfapi/fpdf_parser/cpdf_standard_crypto_handler.h
@@ -0,0 +1,64 @@
+// Copyright 2016 PDFium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
+
+#ifndef CORE_SRC_FPDFAPI_FPDF_PARSER_CPDF_STANDARD_CRYPTO_HANDLER_H_
+#define CORE_SRC_FPDFAPI_FPDF_PARSER_CPDF_STANDARD_CRYPTO_HANDLER_H_
+
+#include "core/include/fpdfapi/ipdf_crypto_handler.h"
+
+class CPDF_StandardCryptoHandler : public IPDF_CryptoHandler {
+ public:
+  CPDF_StandardCryptoHandler();
+  ~CPDF_StandardCryptoHandler() override;
+
+  // IPDF_CryptoHandler
+  FX_BOOL Init(CPDF_Dictionary* pEncryptDict,
+               IPDF_SecurityHandler* pSecurityHandler) override;
+  FX_DWORD DecryptGetSize(FX_DWORD src_size) override;
+  void* DecryptStart(FX_DWORD objnum, FX_DWORD gennum) override;
+  FX_BOOL DecryptStream(void* context,
+                        const uint8_t* src_buf,
+                        FX_DWORD src_size,
+                        CFX_BinaryBuf& dest_buf) override;
+  FX_BOOL DecryptFinish(void* context, CFX_BinaryBuf& dest_buf) override;
+  FX_DWORD EncryptGetSize(FX_DWORD objnum,
+                          FX_DWORD version,
+                          const uint8_t* src_buf,
+                          FX_DWORD src_size) override;
+  FX_BOOL EncryptContent(FX_DWORD objnum,
+                         FX_DWORD version,
+                         const uint8_t* src_buf,
+                         FX_DWORD src_size,
+                         uint8_t* dest_buf,
+                         FX_DWORD& dest_size) override;
+
+  FX_BOOL Init(int cipher, const uint8_t* key, int keylen);
+
+ protected:
+  virtual void CryptBlock(FX_BOOL bEncrypt,
+                          FX_DWORD objnum,
+                          FX_DWORD gennum,
+                          const uint8_t* src_buf,
+                          FX_DWORD src_size,
+                          uint8_t* dest_buf,
+                          FX_DWORD& dest_size);
+  virtual void* CryptStart(FX_DWORD objnum, FX_DWORD gennum, FX_BOOL bEncrypt);
+  virtual FX_BOOL CryptStream(void* context,
+                              const uint8_t* src_buf,
+                              FX_DWORD src_size,
+                              CFX_BinaryBuf& dest_buf,
+                              FX_BOOL bEncrypt);
+  virtual FX_BOOL CryptFinish(void* context,
+                              CFX_BinaryBuf& dest_buf,
+                              FX_BOOL bEncrypt);
+
+  uint8_t m_EncryptKey[32];
+  int m_KeyLen;
+  int m_Cipher;
+  uint8_t* m_pAESContext;
+};
+
+#endif  // CORE_SRC_FPDFAPI_FPDF_PARSER_CPDF_STANDARD_CRYPTO_HANDLER_H_