[webcrypto] Remove a special case for AES-KW wrapping/unwrapping.

content/child/webcrypto/platform_crypto_openssl.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/platform_crypto.h"
 
 #include <vector>
 #include <openssl/aes.h>
 #include <openssl/evp.h>
 #include <openssl/hmac.h>
@@ skipping 476 matching lines @@
                            std::vector<uint8>* private_exponent,
                            std::vector<uint8>* prime1,
                            std::vector<uint8>* prime2,
                            std::vector<uint8>* exponent1,
                            std::vector<uint8>* exponent2,
                            std::vector<uint8>* coefficient) {
   // TODO(eroman): http://crbug.com/267888
   return Status::ErrorUnsupported();
 }
 
-Status WrapSymKeyAesKw(SymKey* key,
-                       SymKey* wrapping_key,
-                       std::vector<uint8>* buffer) {
+Status EncryptDecryptAesKw(EncryptOrDecrypt mode,
+                           SymKey* key,
+                           const CryptoData& data,
+                           std::vector<uint8>* buffer) {
   // TODO(eroman): http://crbug.com/267888
   return Status::ErrorUnsupported();
 }
-
-Status UnwrapSymKeyAesKw(const CryptoData& wrapped_key_data,
-                         SymKey* wrapping_key,
-                         const blink::WebCryptoAlgorithm& algorithm,
-                         bool extractable,
-                         blink::WebCryptoKeyUsageMask usage_mask,
-                         blink::WebCryptoKey* key) {
-  // TODO(eroman): http://crbug.com/267888
-  return Status::ErrorUnsupported();
-}
-
-Status DecryptAesKw(SymKey* key,
-                    const CryptoData& data,
-                    std::vector<uint8>* buffer) {
-  // TODO(eroman): http://crbug.com/267888
-  return Status::ErrorUnsupported();
-}
 
 bool ThreadSafeDeserializeKeyForClone(
     const blink::WebCryptoKeyAlgorithm& algorithm,
     blink::WebCryptoKeyType type,
     bool extractable,
     blink::WebCryptoKeyUsageMask usages,
     const CryptoData& key_data,
     blink::WebCryptoKey* key) {
   // TODO(eroman): http://crbug.com/267888
   return false;
 }
 
 }  // namespace platform
 
 }  // namespace webcrypto
 
 }  // namespace content