[webcrypto] Remove support for null import algorithms.

content/child/webcrypto/webcrypto_util.h

 // 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.
 
 #ifndef CONTENT_CHILD_WEBCRYPTO_WEBCRYPTO_UTIL_H_
 #define CONTENT_CHILD_WEBCRYPTO_WEBCRYPTO_UTIL_H_
 
 #include <string>
 #include <vector>
 #include "base/basictypes.h"
@@ skipping 145 matching lines @@
 
   // The input data given to an AES-KW encrypt/decrypt operation was not a
   // multiple of 8 bytes, as required by RFC 3394.
   static Status ErrorInvalidAesKwDataLength();
 
   // The "publicExponent" used to generate a key was invalid: either no bytes
   // were specified, or the number was too large to fit into an "unsigned long"
   // (implemention limitation), or the exponent was zero.
   static Status ErrorGenerateKeyPublicExponent();
 
-  // The algorithm was null when importing a raw-formatted key. In this case it
-  // is required.
-  static Status ErrorMissingAlgorithmImportRawKey();
-
-  // The algorithm was null when unwrapping a raw-formatted key. In this case it
-  // is required.
-  static Status ErrorMissingAlgorithmUnwrapRawKey();
-
   // The modulus bytes were empty when importing an RSA public key.
   static Status ErrorImportRsaEmptyModulus();
 
   // The the modulus length was zero bits when generating an RSA public key.
   static Status ErrorGenerateRsaZeroModulus();
 
   // The exponent bytes were empty when importing an RSA public key.
   static Status ErrorImportRsaEmptyExponent();
 
   // An unextractable key was used by an operation which exports the key data.
@@ skipping 69 matching lines @@
 
 bool CreateSecretKeyAlgorithm(const blink::WebCryptoAlgorithm& algorithm,
                               unsigned keylen_bytes,
                               blink::WebCryptoKeyAlgorithm* key_algorithm);
 
 }  // namespace webcrypto
 
 }  // namespace content
 
 #endif  // CONTENT_CHILD_WEBCRYPTO_WEBCRYPTO_UTIL_H_