[refactor] Remove IsHashAlgorithm() function.

content/child/webcrypto/webcrypto_util.cc

 // Copyright 2014 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/child/webcrypto/webcrypto_util.h"
 
 #include "base/base64.h"
 #include "base/logging.h"
 #include "base/strings/stringprintf.h"
 #include "content/child/webcrypto/status.h"
@@ skipping 96 matching lines @@
 base::ListValue* CreateJwkKeyOpsFromWebCryptoUsages(
     blink::WebCryptoKeyUsageMask usage_mask) {
   base::ListValue* jwk_key_ops = new base::ListValue();
   for (size_t i = 0; i < arraysize(kJwkWebCryptoUsageMap); ++i) {
     if (usage_mask & kJwkWebCryptoUsageMap[i].webcrypto_usage)
       jwk_key_ops->AppendString(kJwkWebCryptoUsageMap[i].jwk_key_op);
   }
   return jwk_key_ops;
 }
 
-bool IsHashAlgorithm(blink::WebCryptoAlgorithmId alg_id) {
-  return alg_id == blink::WebCryptoAlgorithmIdSha1 ||
-         alg_id == blink::WebCryptoAlgorithmIdSha256 ||
-         alg_id == blink::WebCryptoAlgorithmIdSha384 ||
-         alg_id == blink::WebCryptoAlgorithmIdSha512;
-}
-
 blink::WebCryptoAlgorithm GetInnerHashAlgorithm(
     const blink::WebCryptoAlgorithm& algorithm) {
   DCHECK(!algorithm.isNull());
   switch (algorithm.paramsType()) {
     case blink::WebCryptoAlgorithmParamsTypeHmacImportParams:
       return algorithm.hmacImportParams()->hash();
     case blink::WebCryptoAlgorithmParamsTypeHmacKeyGenParams:
       return algorithm.hmacKeyGenParams()->hash();
     case blink::WebCryptoAlgorithmParamsTypeRsaHashedImportParams:
       return algorithm.rsaHashedImportParams()->hash();
     case blink::WebCryptoAlgorithmParamsTypeRsaHashedKeyGenParams:
       return algorithm.rsaHashedKeyGenParams()->hash();
     default:
       return blink::WebCryptoAlgorithm::createNull();
   }
 }
 
 blink::WebCryptoAlgorithm CreateAlgorithm(blink::WebCryptoAlgorithmId id) {
   return blink::WebCryptoAlgorithm::adoptParamsAndCreate(id, NULL);
 }
 
 blink::WebCryptoAlgorithm CreateHmacImportAlgorithm(
     blink::WebCryptoAlgorithmId hash_id) {
-  DCHECK(IsHashAlgorithm(hash_id));
+  DCHECK(blink::WebCryptoAlgorithm::isHash(hash_id));
   return blink::WebCryptoAlgorithm::adoptParamsAndCreate(
       blink::WebCryptoAlgorithmIdHmac,
       new blink::WebCryptoHmacImportParams(CreateAlgorithm(hash_id)));
 }
 
 blink::WebCryptoAlgorithm CreateRsaHashedImportAlgorithm(
     blink::WebCryptoAlgorithmId id,
     blink::WebCryptoAlgorithmId hash_id) {
-  DCHECK(IsHashAlgorithm(hash_id));
+  DCHECK(blink::WebCryptoAlgorithm::isHash(hash_id));
   DCHECK(id == blink::WebCryptoAlgorithmIdRsaSsaPkcs1v1_5 ||
          id == blink::WebCryptoAlgorithmIdRsaOaep);
   return blink::WebCryptoAlgorithm::adoptParamsAndCreate(
       id, new blink::WebCryptoRsaHashedImportParams(CreateAlgorithm(hash_id)));
 }
 
 bool CreateSecretKeyAlgorithm(const blink::WebCryptoAlgorithm& algorithm,
                               unsigned int keylen_bytes,
                               blink::WebCryptoKeyAlgorithm* key_algorithm) {
   switch (algorithm.id()) {
@@ skipping 15 matching lines @@
           algorithm.id(), keylen_bytes * 8);
       return true;
     default:
       return false;
   }
 }
 
 }  // namespace webcrypto
 
 }  // namespace content