Enable passing cast channel certificate authority keys.

extensions/browser/api/cast_channel/cast_auth_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 EXTENSIONS_BROWSER_API_CAST_CHANNEL_CAST_AUTH_UTIL_H_
 #define EXTENSIONS_BROWSER_API_CAST_CHANNEL_CAST_AUTH_UTIL_H_
 
 #include <string>
 
 namespace extensions {
@@ skipping 40 matching lines @@
              ErrorType error_type,
              int nss_error_code);
 };
 
 // Authenticates the given |challenge_reply|:
 // 1. Signature contained in the reply is valid.
 // 2. Certficate used to sign is rooted to a trusted CA.
 AuthResult AuthenticateChallengeReply(const CastMessage& challenge_reply,
                                       const std::string& peer_cert);
 
+// Sets trusted certificate authorities.
+bool SetTrustedCertificateAuthorities(const std::string& signature,
+                                      const std::string& keys);
+
 }  // namespace cast_channel
 }  // namespace core_api
 }  // namespace extensions
 
 #endif  // EXTENSIONS_BROWSER_API_CAST_CHANNEL_CAST_AUTH_UTIL_H_