Cast: Let the extension control if DSCP is on or off.

media/cast/test/sender.cc

 // 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.
 
 // Test application that simulates a cast sender - Data can be either generated
 // or read from a file.
 
 #include <queue>
 
 #include "base/at_exit.h"
@@ skipping 304 matching lines @@
     LOG(INFO) << "Source: " << source_path.value();
     fake_media_source->SetSourceFile(source_path, override_fps);
   }
 
   // CastTransportSender initialization.
   scoped_ptr<media::cast::CastTransportSender> transport_sender =
       media::cast::CastTransportSender::Create(
           NULL,  // net log.
           cast_environment->Clock(),
           remote_endpoint,
+          make_scoped_ptr(new base::DictionaryValue),  // options
           base::Bind(&UpdateCastTransportStatus),
           base::Bind(&LogRawEvents, cast_environment),
           base::TimeDelta::FromSeconds(1),
           io_message_loop.message_loop_proxy());
 
   // CastSender initialization.
   scoped_ptr<media::cast::CastSender> cast_sender =
       media::cast::CastSender::Create(cast_environment, transport_sender.get());
   cast_sender->InitializeVideo(
       fake_media_source->get_video_config(),
@@ skipping 67 matching lines @@
                  base::Passed(&audio_stats_subscriber),
                  base::Passed(&offset_estimator)),
       base::TimeDelta::FromSeconds(logging_duration_seconds));
 
   fake_media_source->Start(cast_sender->audio_frame_input(),
                            cast_sender->video_frame_input());
 
   io_message_loop.Run();
   return 0;
 }