[refactor] delete CreateHmacAlgorithmByHashOutputLen().

content/renderer/webcrypto/webcrypto_util.cc

 // Copyright 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.
 
 #include "content/renderer/webcrypto/webcrypto_util.h"
 
 #include "base/base64.h"
 #include "base/logging.h"
 #include "third_party/WebKit/public/platform/WebCryptoAlgorithm.h"
 #include "third_party/WebKit/public/platform/WebCryptoAlgorithmParams.h"
@@ skipping 70 matching lines @@
     return algorithm.rsaSsaParams()->hash();
   if (algorithm.rsaOaepParams())
     return algorithm.rsaOaepParams()->hash();
   return blink::WebCryptoAlgorithm::createNull();
 }
 
 blink::WebCryptoAlgorithm CreateAlgorithm(blink::WebCryptoAlgorithmId id) {
   return blink::WebCryptoAlgorithm::adoptParamsAndCreate(id, NULL);
 }
 
-blink::WebCryptoAlgorithm CreateHmacAlgorithmByHashOutputLen(
-    unsigned short hash_output_length_bits) {
-  blink::WebCryptoAlgorithmId hash_id;
-  switch (hash_output_length_bits) {
-    case 160:
-      hash_id = blink::WebCryptoAlgorithmIdSha1;
-      break;
-    case 224:
-      hash_id = blink::WebCryptoAlgorithmIdSha224;
-      break;
-    case 256:
-      hash_id = blink::WebCryptoAlgorithmIdSha256;
-      break;
-    case 384:
-      hash_id = blink::WebCryptoAlgorithmIdSha384;
-      break;
-    case 512:
-      hash_id = blink::WebCryptoAlgorithmIdSha512;
-      break;
-    default:
-      NOTREACHED();
-      return blink::WebCryptoAlgorithm::createNull();
-  }
-  return blink::WebCryptoAlgorithm::adoptParamsAndCreate(
-      blink::WebCryptoAlgorithmIdHmac,
-      new blink::WebCryptoHmacParams(CreateAlgorithm(hash_id)));
-}
-
 blink::WebCryptoAlgorithm CreateHmacAlgorithmByHashId(
     blink::WebCryptoAlgorithmId hash_id) {
   DCHECK(IsHashAlgorithm(hash_id));
   return blink::WebCryptoAlgorithm::adoptParamsAndCreate(
       blink::WebCryptoAlgorithmIdHmac,
       new blink::WebCryptoHmacParams(CreateAlgorithm(hash_id)));
 }
 
 blink::WebCryptoAlgorithm CreateHmacKeyGenAlgorithm(
     blink::WebCryptoAlgorithmId hash_id,
@@ skipping 67 matching lines @@
 
 blink::WebCryptoAlgorithm CreateAesGcmKeyGenAlgorithm(
     unsigned short key_length_bits) {
   return CreateAesKeyGenAlgorithm(blink::WebCryptoAlgorithmIdAesGcm,
                                   key_length_bits);
 }
 
 }  // namespace webcrypto
 
 }  // namespace content