Reland "Cut down /crypto and switch what is left of it to boringssl".

crypto/ec_signature_creator_impl.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_EC_SIGNATURE_CREATOR_IMPL_H_
-#define CRYPTO_EC_SIGNATURE_CREATOR_IMPL_H_
-
-#include "base/compiler_specific.h"
-#include "crypto/ec_signature_creator.h"
-
-namespace crypto {
-
-class ECSignatureCreatorImpl : public ECSignatureCreator {
- public:
-  explicit ECSignatureCreatorImpl(ECPrivateKey* key);
-  ~ECSignatureCreatorImpl() override;
-
-  bool Sign(const uint8* data,
-            int data_len,
-            std::vector<uint8>* signature) override;
-
-  bool DecodeSignature(const std::vector<uint8>& der_sig,
-                       std::vector<uint8>* out_raw_sig) override;
-
- private:
-  ECPrivateKey* key_;
-  size_t signature_len_;
-
-  DISALLOW_COPY_AND_ASSIGN(ECSignatureCreatorImpl);
-};
-
-}  // namespace crypto
-
-#endif  // CRYPTO_EC_SIGNATURE_CREATOR_IMPL_H_