Cast audio only policy enforcement support.

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 15 matching lines @@
     ERROR_MESSAGE_ERROR,
     ERROR_NO_RESPONSE,
     ERROR_FINGERPRINT_NOT_FOUND,
     ERROR_CERT_PARSING_FAILED,
     ERROR_CERT_NOT_SIGNED_BY_TRUSTED_CA,
     ERROR_CANNOT_EXTRACT_PUBLIC_KEY,
     ERROR_SIGNED_BLOBS_MISMATCH,
     ERROR_UNEXPECTED_AUTH_LIBRARY_RESULT
   };
 
+  enum PolicyType { POLICY_NONE = 0, POLICY_AUDIO_ONLY = 1 << 0 };
+
   // Constructs a AuthResult that corresponds to success.
   AuthResult();
   ~AuthResult();
 
   static AuthResult CreateWithParseError(const std::string& error_message,
                                          ErrorType error_type);
   static AuthResult CreateWithNSSError(const std::string& error_message,
                                        ErrorType error_type,
                                        int nss_error_code);
 
   bool success() const { return error_type == ERROR_NONE; }
 
   std::string error_message;
   ErrorType error_type;
   int nss_error_code;
+  unsigned int channel_policy;

[Kevin M, 2015/01/14 00:26:16]

Policies, since there can be >1?

[vadimgo, 2015/01/14 01:16:14]

Done.

 
  private:
   AuthResult(const std::string& error_message,
              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);
 
 // Auth-library specific implementation of cryptographic signature
 // verification routines. Verifies that |response| contains a
 // valid signed form of |peer_cert|.
 AuthResult VerifyCredentials(const AuthResponse& response,
                              const std::string& peer_cert);
 
 }  // namespace cast_channel
 }  // namespace core_api
 }  // namespace extensions
 
 #endif  // EXTENSIONS_BROWSER_API_CAST_CHANNEL_CAST_AUTH_UTIL_H_