Cast:Adding cast_transport_config and cleaning up

media/cast/transport/rtcp/rtcp_builder.h

 // 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.
 
 #ifndef MEDIA_CAST_TRANSPORT_RTCP_RTCP_BUILDER_H_
 #define MEDIA_CAST_TRANSPORT_RTCP_RTCP_BUILDER_H_
 
 #include <list>
 #include <string>
 #include <vector>
@@ skipping 48 matching lines @@
   void BuildBye(std::vector<uint8>* packet) const;
 
   void BuildDlrrRb(const RtcpDlrrReportBlock* dlrr,
                    std::vector<uint8>* packet) const;
   void BuildSenderLog(RtcpSenderLogMessage* sender_log_message,
                       std::vector<uint8>* packet) const;
 
   const uint32 ssrc_;
   const std::string c_name_;
 
-  // Not owned by this class.
-  PacedPacketSender* transport_;
+  PacedPacketSender* const transport_;  // Not owned by this class.
 
   DISALLOW_COPY_AND_ASSIGN(RtcpBuilder);
 };
 
 }  // namespace transport
 }  // namespace cast
 }  // namespace media
 
 #endif  // MEDIA_CAST_TRANSPORT_RTCP_RTCP_BUILDER_H_