Split out dscp option from VideoOptions to new struct MediaChannelOptions.

webrtc/media/sctp/sctpdataengine.cc

 /*
  * libjingle
  * Copyright 2012 Google Inc.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
  *
  *  1. Redistributions of source code must retain the above copyright notice,
  *     this list of conditions and the following disclaimer.
  *  2. Redistributions in binary form must reproduce the above copyright notice,
@@ skipping 346 matching lines @@
   if (!channel) {
     LOG(LS_ERROR) << "SendThresholdCallback: Failed to get channel for socket "
                   << sock;
     return 0;
   }
   channel->OnSendThresholdCallback();
   return 0;
 }
 
 SctpDataMediaChannel::SctpDataMediaChannel(rtc::Thread* thread)
-    : worker_thread_(thread),
+    : DataMediaChannel(MediaChannelOptions()),
+      worker_thread_(thread),
       local_port_(kSctpDefaultPort),
       remote_port_(kSctpDefaultPort),
       sock_(NULL),
       sending_(false),
       receiving_(false),
       debug_name_("SctpDataMediaChannel") {
 }
 
 SctpDataMediaChannel::~SctpDataMediaChannel() {
   CloseSctpSocket();
@@ skipping 666 matching lines @@
     }
     case MSG_SCTPOUTBOUNDPACKET: {
       rtc::scoped_ptr<OutboundPacketMessage> pdata(
           static_cast<OutboundPacketMessage*>(msg->pdata));
       OnPacketFromSctpToNetwork(pdata->data().get());
       break;
     }
   }
 }
 }  // namespace cricket