[webcrypto] Minor cleanup/consolidation of JWK source.

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 157 matching lines @@
 blink::WebCryptoAlgorithm CreateRsaHashedImportAlgorithm(
     blink::WebCryptoAlgorithmId id,
     blink::WebCryptoAlgorithmId hash_id) {
   DCHECK(IsHashAlgorithm(hash_id));
   DCHECK(id == blink::WebCryptoAlgorithmIdRsaSsaPkcs1v1_5 ||
          id == blink::WebCryptoAlgorithmIdRsaOaep);
   return blink::WebCryptoAlgorithm::adoptParamsAndCreate(
       id, new blink::WebCryptoRsaHashedImportParams(CreateAlgorithm(hash_id)));
 }
 
-blink::WebCryptoAlgorithm CreateRsaSsaImportAlgorithm(
-    blink::WebCryptoAlgorithmId hash_id) {
-  return CreateRsaHashedImportAlgorithm(
-      blink::WebCryptoAlgorithmIdRsaSsaPkcs1v1_5, hash_id);
-}
-
-blink::WebCryptoAlgorithm CreateRsaOaepImportAlgorithm(
-    blink::WebCryptoAlgorithmId hash_id) {
-  return CreateRsaHashedImportAlgorithm(blink::WebCryptoAlgorithmIdRsaOaep,
-                                        hash_id);
-}
-
-unsigned int ShaBlockSizeBytes(blink::WebCryptoAlgorithmId hash_id) {
-  switch (hash_id) {
-    case blink::WebCryptoAlgorithmIdSha1:
-    case blink::WebCryptoAlgorithmIdSha256:
-      return 64;
-    case blink::WebCryptoAlgorithmIdSha384:
-    case blink::WebCryptoAlgorithmIdSha512:
-      return 128;
-    default:
-      NOTREACHED();
-      return 0;
-  }
-}
-
 bool CreateSecretKeyAlgorithm(const blink::WebCryptoAlgorithm& algorithm,
                               unsigned int keylen_bytes,
                               blink::WebCryptoKeyAlgorithm* key_algorithm) {
   switch (algorithm.id()) {
     case blink::WebCryptoAlgorithmIdHmac: {
       blink::WebCryptoAlgorithm hash = GetInnerHashAlgorithm(algorithm);
       if (hash.isNull())
         return false;
       if (keylen_bytes > UINT_MAX / 8)
         return false;
       *key_algorithm =
           blink::WebCryptoKeyAlgorithm::createHmac(hash.id(), keylen_bytes * 8);
       return true;
     }
     case blink::WebCryptoAlgorithmIdAesKw:
     case blink::WebCryptoAlgorithmIdAesCbc:
     case blink::WebCryptoAlgorithmIdAesCtr:
     case blink::WebCryptoAlgorithmIdAesGcm:
       *key_algorithm = blink::WebCryptoKeyAlgorithm::createAes(
           algorithm.id(), keylen_bytes * 8);
       return true;
     default:
       return false;
   }
 }
 
 }  // namespace webcrypto
 
 }  // namespace content