[refactor] delete CreateHmacAlgorithmByHashOutputLen().

content/renderer/webcrypto/webcrypto_util.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 CONTENT_RENDERER_WEBCRYPTO_WEBCRYPTO_UTIL_H_
 #define CONTENT_RENDERER_WEBCRYPTO_WEBCRYPTO_UTIL_H_
 
 #include <map>
 #include <string>
 #include <vector>
@@ skipping 27 matching lines @@
 // Returns the "hash" param for an algorithm if it exists, otherwise returns
 // a null algorithm.
 blink::WebCryptoAlgorithm GetInnerHashAlgorithm(
     const blink::WebCryptoAlgorithm& algorithm);
 
 // Creates a WebCryptoAlgorithm without any parameters.
 CONTENT_EXPORT blink::WebCryptoAlgorithm CreateAlgorithm(
     blink::WebCryptoAlgorithmId id);
 
 // Creates an HMAC algorithm whose inner hash algorithm is determined by the
-// specified hash output length. It is an error to call this method with an
-// unsupported hash output length.
-blink::WebCryptoAlgorithm CreateHmacAlgorithmByHashOutputLen(
-    unsigned short hash_output_length_bits);
-
-// Creates an HMAC algorithm whose inner hash algorithm is determined by the
 // specified algorithm ID. It is an error to call this method with a hash
 // algorithm that is not SHA*.
 CONTENT_EXPORT blink::WebCryptoAlgorithm CreateHmacAlgorithmByHashId(
     blink::WebCryptoAlgorithmId hash_id);
 
 // Creates an HMAC algorithm whose parameters struct is compatible with key
 // generation. It is an error to call this with a hash_id that is not a SHA*.
 // The key_length_bytes parameter is optional, with zero meaning unspecified.
 CONTENT_EXPORT blink::WebCryptoAlgorithm CreateHmacKeyGenAlgorithm(
     blink::WebCryptoAlgorithmId hash_id,
@@ skipping 34 matching lines @@
 // Creates an AES-GCM algorithm whose parameters struct is compatible with key
 // generation.
 blink::WebCryptoAlgorithm CreateAesGcmKeyGenAlgorithm(
     unsigned short key_length_bits);
 
 }  // namespace webcrypto
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_WEBCRYPTO_WEBCRYPTO_UTIL_H_