Fix non-noise cpplint errors in //crypto.

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 <stdint.h>
 
+#include <vector>
+
 #include "base/compiler_specific.h"
 #include "base/macros.h"
 #include "crypto/ec_signature_creator.h"
 
 namespace crypto {
 
 class ECSignatureCreatorImpl : public ECSignatureCreator {
  public:
   explicit ECSignatureCreatorImpl(ECPrivateKey* key);
   ~ECSignatureCreatorImpl() override;
 
   bool Sign(const uint8_t* data,
             int data_len,
             std::vector<uint8_t>* signature) override;
 
   bool DecodeSignature(const std::vector<uint8_t>& der_sig,
                        std::vector<uint8_t>* out_raw_sig) override;
 
  private:
   ECPrivateKey* key_;
 
   DISALLOW_COPY_AND_ASSIGN(ECSignatureCreatorImpl);
 };
 
 }  // namespace crypto
 
 #endif  // CRYPTO_EC_SIGNATURE_CREATOR_IMPL_H_