Revert "Linux (nss) implementations of RSAPrivateKey and SignatureCreator"

base/crypto/rsa_private_key.h

 // Copyright (c) 2009 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 BASE_CRYPTO_RSA_PRIVATE_KEY_H_
 #define BASE_CRYPTO_RSA_PRIVATE_KEY_H_
 
 #include "build/build_config.h"
 
-#if defined(USE_NSS)
-#include <cryptoht.h>
-#include <keythi.h>
-#elif defined(OS_MACOSX)
-// TODO(port);
-#elif defined(OS_WIN)
+#if defined(OS_WIN)
 #include <windows.h>
 #include <wincrypt.h>
+#else
+// TODO(port)
 #endif
 
 #include <vector>
 
 #include "base/basictypes.h"
 
 namespace base {
 
 // Encapsulates an RSA private key. Can be used to generate new keys, export
 // keys to other formats, or to extract a public key.
 class RSAPrivateKey {
  public:
   // Create a new random instance. Can return NULL if initialization fails.
   static RSAPrivateKey* Create(uint16 num_bits);
 
   // Create a new instance by importing an existing private key. The format is
   // an ASN.1-encoded PrivateKeyInfo block from PKCS #8. This can return NULL if
   // initialization fails.
   static RSAPrivateKey* CreateFromPrivateKeyInfo(
       const std::vector<uint8>& input);
 
   ~RSAPrivateKey();
 
-#if defined(USE_NSS)
-  SECKEYPrivateKey* key() { return key_; }
-#elif defined(OS_WIN)
+#if defined(OS_WIN)
   HCRYPTPROV provider() { return provider_; }
   HCRYPTKEY key() { return key_; }
 #endif
 
   // Exports the private key to a PKCS #1 PrivateKey block.
   bool ExportPrivateKey(std::vector<uint8>* output);
 
   // Exports the public key to an X509 SubjectPublicKeyInfo block.
   bool ExportPublicKey(std::vector<uint8>* output);
 
 private:
   // Constructor is private. Use Create() or CreateFromPrivateKeyInfo()
   // instead.
   RSAPrivateKey();
 
-#if defined(USE_NSS)
-  SECKEYPrivateKey* key_;
-  SECKEYPublicKey* public_key_;
-#elif defined(OS_WIN)
+#if defined(OS_WIN)
   bool InitProvider();
 
   HCRYPTPROV provider_;
   HCRYPTKEY key_;
 #endif
 
   DISALLOW_COPY_AND_ASSIGN(RSAPrivateKey);
 };
 
 }  // namespace base
 
 #endif  // BASE_CRYPTO_RSA_PRIVATE_KEY_H_