[webcrypto] Add RSA key generation using NSS.

content/renderer/webcrypto/webcrypto_impl_openssl.cc

 // Copyright 2013 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/renderer/webcrypto/webcrypto_impl.h"
 
 #include <vector>
 #include <openssl/aes.h>
 #include <openssl/evp.h>
 #include <openssl/hmac.h>
@@ skipping 281 matching lines @@
     return false;
   }
 
   *key = WebKit::WebCryptoKey::create(
       new SymKeyHandle(&random_bytes[0], random_bytes.size()),
       key_type, extractable, algorithm, usage_mask);
 
   return true;
 }
 
+bool WebCryptoImpl::GenerateKeyPairInternal(
+    const WebKit::WebCryptoAlgorithm& algorithm,
+    bool extractable,
+    WebKit::WebCryptoKeyUsageMask usage_mask,
+    WebKit::WebCryptoKey* public_key,
+    WebKit::WebCryptoKey* private_key) {
+  // TODO(padolph): Placeholder for OpenSSL implementation.
+  // Issue http://crbug.com/267888.
+  return false;
+}
+
 bool WebCryptoImpl::ImportKeyInternal(
     WebKit::WebCryptoKeyFormat format,
     const unsigned char* key_data,
     unsigned key_data_size,
     const WebKit::WebCryptoAlgorithm& algorithm_or_null,
     bool extractable,
     WebKit::WebCryptoKeyUsageMask usage_mask,
     WebKit::WebCryptoKey* key) {
   // TODO(eroman): Currently expects algorithm to always be specified, as it is
   //               required for raw format.
@@ skipping 159 matching lines @@
 
       break;
     }
     default:
       return false;
   }
   return true;
 }
 
 }  // namespace content