[webcrypto] Add JWK RSA public key export for NSS.

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 28 matching lines @@
 // TODO(eroman): Move this to JWK file.
 // This function decodes unpadded 'base64url' encoded data, as described in
 // RFC4648 (http://www.ietf.org/rfc/rfc4648.txt) Section 5.
 // In Web Crypto, this type of encoding is only used inside JWK.
 CONTENT_EXPORT bool Base64DecodeUrlSafe(const std::string& input,
                                         std::string* output);
 
 // Returns an unpadded 'base64url' encoding of the input data, the opposite of
 // Base64DecodeUrlSafe() above.
 std::string Base64EncodeUrlSafe(const base::StringPiece& input);
+std::string Base64EncodeUrlSafe(const std::vector<uint8>& input);
 
 // Composes a Web Crypto usage mask from an array of JWK key_ops values.
 CONTENT_EXPORT Status GetWebCryptoUsagesFromJwkKeyOps(
     const base::ListValue* jwk_key_ops_value,
     blink::WebCryptoKeyUsageMask* jwk_key_ops_mask);
 
 // Composes a JWK key_ops array from a Web Crypto usage mask.
 base::ListValue* CreateJwkKeyOpsFromWebCryptoUsages(
     blink::WebCryptoKeyUsageMask usage_mask);
 
@@ skipping 37 matching lines @@
 
 bool CreateSecretKeyAlgorithm(const blink::WebCryptoAlgorithm& algorithm,
                               unsigned int keylen_bytes,
                               blink::WebCryptoKeyAlgorithm* key_algorithm);
 
 }  // namespace webcrypto
 
 }  // namespace content
 
 #endif  // CONTENT_CHILD_WEBCRYPTO_WEBCRYPTO_UTIL_H_