Removing NSS files and USE_OPENSSL flag

net/quic/crypto/p256_key_exchange.h

 // Copyright (c) 2013 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 NET_QUIC_CRYPTO_P256_KEY_EXCHANGE_H_
 #define NET_QUIC_CRYPTO_P256_KEY_EXCHANGE_H_
 
 #include <stdint.h>
 
 #include <memory>
 #include <string>
 
 #include "base/macros.h"
 #include "base/strings/string_piece.h"
+#include "crypto/openssl_util.h"
+#include "crypto/scoped_openssl_types.h"
 #include "net/base/net_export.h"
 #include "net/quic/crypto/key_exchange.h"
 
-#if defined(USE_OPENSSL)
-#include "crypto/openssl_util.h"
-#include "crypto/scoped_openssl_types.h"
-#else
-#include "crypto/ec_private_key.h"
-#include "crypto/scoped_nss_types.h"
-#endif
 
 namespace net {
 
 // P256KeyExchange implements a KeyExchange using elliptic-curve
 // Diffie-Hellman on NIST P-256.
 class NET_EXPORT_PRIVATE P256KeyExchange : public KeyExchange {
  public:
   ~P256KeyExchange() override;
 
   // New creates a new key exchange object from a private key. If
@@ skipping 17 matching lines @@
     // A P-256 field element consists of 32 bytes.
     kP256FieldBytes = 32,
     // A P-256 point in uncompressed form consists of 0x04 (to denote
     // that the point is uncompressed) followed by two, 32-byte field
     // elements.
     kUncompressedP256PointBytes = 1 + 2 * kP256FieldBytes,
     // The first byte in an uncompressed P-256 point.
     kUncompressedECPointForm = 0x04,
   };
 
-#if defined(USE_OPENSSL)
   // P256KeyExchange takes ownership of |private_key|, and expects
   // |public_key| consists of |kUncompressedP256PointBytes| bytes.
   P256KeyExchange(EC_KEY* private_key, const uint8_t* public_key);
 
   crypto::ScopedEC_KEY private_key_;
-#else
-  // P256KeyExchange takes ownership of |key_pair|, and expects
-  // |public_key| consists of |kUncompressedP256PointBytes| bytes.
-  P256KeyExchange(crypto::ECPrivateKey* key_pair, const uint8_t* public_key);
-
-  std::unique_ptr<crypto::ECPrivateKey> key_pair_;
-#endif
   // The public key stored as an uncompressed P-256 point.
   uint8_t public_key_[kUncompressedP256PointBytes];
 
   DISALLOW_COPY_AND_ASSIGN(P256KeyExchange);
 };
 
 }  // namespace net
 #endif  // NET_QUIC_CRYPTO_P256_KEY_EXCHANGE_H_