[webcrypto] Remove support for null import algorithms.

content/child/webcrypto/shared_crypto.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_SHARED_CRYPTO_H_
 #define CONTENT_CHILD_WEBCRYPTO_SHARED_CRYPTO_H_
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "content/common/content_export.h"
@@ skipping 85 matching lines @@
 CONTENT_EXPORT Status
     GenerateKeyPair(const blink::WebCryptoAlgorithm& algorithm,
                     bool extractable,
                     blink::WebCryptoKeyUsageMask usage_mask,
                     blink::WebCryptoKey* public_key,
                     blink::WebCryptoKey* private_key);
 
 CONTENT_EXPORT Status
     ImportKey(blink::WebCryptoKeyFormat format,
               const CryptoData& key_data,
-              const blink::WebCryptoAlgorithm& algorithm_or_null,
+              const blink::WebCryptoAlgorithm& algorithm,
               bool extractable,
               blink::WebCryptoKeyUsageMask usage_mask,
               blink::WebCryptoKey* key);
 
 CONTENT_EXPORT Status ExportKey(blink::WebCryptoKeyFormat format,
                                 const blink::WebCryptoKey& key,
                                 blink::WebArrayBuffer* buffer);
 
 CONTENT_EXPORT Status Sign(const blink::WebCryptoAlgorithm& algorithm,
                            const blink::WebCryptoKey& key,
                            const CryptoData& data,
                            blink::WebArrayBuffer* buffer);
 
 CONTENT_EXPORT Status
     VerifySignature(const blink::WebCryptoAlgorithm& algorithm,
                     const blink::WebCryptoKey& key,
                     const CryptoData& signature,
                     const CryptoData& data,
                     bool* signature_match);
 
 CONTENT_EXPORT Status
     ImportKeyJwk(const CryptoData& key_data,
-                 const blink::WebCryptoAlgorithm& algorithm_or_null,
+                 const blink::WebCryptoAlgorithm& algorithm,
                  bool extractable,
                  blink::WebCryptoKeyUsageMask usage_mask,
                  blink::WebCryptoKey* key);
 
 CONTENT_EXPORT Status
     WrapKey(blink::WebCryptoKeyFormat format,
             const blink::WebCryptoKey& wrapping_key,
             const blink::WebCryptoKey& key_to_wrap,
             const blink::WebCryptoAlgorithm& wrapping_algorithm,
             blink::WebArrayBuffer* buffer);
 
 CONTENT_EXPORT Status
     UnwrapKey(blink::WebCryptoKeyFormat format,
               const CryptoData& wrapped_key_data,
               const blink::WebCryptoKey& wrapping_key,
               const blink::WebCryptoAlgorithm& wrapping_algorithm,
-              const blink::WebCryptoAlgorithm& algorithm_or_null,
+              const blink::WebCryptoAlgorithm& algorithm,
               bool extractable,
               blink::WebCryptoKeyUsageMask usage_mask,
               blink::WebCryptoKey* key);
 
 }  // namespace webcrypto
 
 }  // namespace content
 
 #endif  // CONTENT_CHILD_WEBCRYPTO_SHARED_CRYPTO_H_