Use NSS for symmetric key crypto operations on Windows and Mac.

crypto/encryptor.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CRYPTO_ENCRYPTOR_H_
 #define CRYPTO_ENCRYPTOR_H_
 #pragma once
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/string_piece.h"
 #include "build/build_config.h"
 #include "crypto/crypto_export.h"
 
-#if defined(USE_NSS)
+#if defined(USE_NSS) || defined(OS_WIN) || defined(OS_MACOSX)
 #include "crypto/scoped_nss_types.h"
-#elif defined(OS_WIN)
-#include "crypto/scoped_capi_types.h"
 #endif
 
 namespace crypto {
 
 class SymmetricKey;
 
 class CRYPTO_EXPORT Encryptor {
  public:
   enum Mode {
     CBC,
     CTR,
   };
 
   // This class implements a 128-bits counter to be used in AES-CTR encryption.
   // Only 128-bits counter is supported in this class.
-  class Counter {
+  class CRYPTO_EXPORT Counter {
    public:
     explicit Counter(const base::StringPiece& counter);
     ~Counter();
 
     // Increment the counter value.
     bool Increment();
 
     // Write the content of the counter to |buf|. |buf| should have enough
     // space for |GetLengthInBytes()|.
     void Write(void* buf);
@@ skipping 67 matching lines @@
 
   SymmetricKey* key_;
   Mode mode_;
   scoped_ptr<Counter> counter_;
 
 #if defined(USE_OPENSSL)
   bool Crypt(bool encrypt,  // Pass true to encrypt, false to decrypt.
              const base::StringPiece& input,
              std::string* output);
   std::string iv_;
-#elif defined(USE_NSS)
+#elif defined(USE_NSS) || defined(OS_WIN) || defined(OS_MACOSX)
   bool Crypt(PK11Context* context,
              const base::StringPiece& input,
              std::string* output);
   bool CryptCTR(PK11Context* context,
                 const base::StringPiece& input,
                 std::string* output);
   ScopedPK11Slot slot_;
   ScopedSECItem param_;
-#elif defined(OS_MACOSX)
-  bool Crypt(int /*CCOperation*/ op,
-             const base::StringPiece& input,
-             std::string* output);
-
-  std::string iv_;
-#elif defined(OS_WIN)
-  ScopedHCRYPTKEY capi_key_;
-  DWORD block_size_;
 #endif
 };
 
 }  // namespace crypto
 
 #endif  // CRYPTO_ENCRYPTOR_H_