[webcrypto] Add JWK import of RSA public key for 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 467 matching lines @@
           crypto::SecureMemEqual(result.data(), signature, signature_size);
 
       break;
     }
     default:
       return false;
   }
   return true;
 }
 
+bool WebCryptoImpl::ImportRsaPublicKeyInternal(
+    const unsigned char* modulus_data,
+    unsigned modulus_size,
+    const unsigned char* exponent_data,
+    unsigned exponent_size,
+    const blink::WebCryptoAlgorithm& algorithm,
+    bool extractable,
+    blink::WebCryptoKeyUsageMask usage_mask,
+    blink::WebCryptoKey* key) {
+  // TODO(padolph): Placeholder for OpenSSL implementation.
+  // Issue http://crbug.com/267888.
+  return false;
+}
+
 }  // namespace content