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

media/cast/sender/video_sender_unittest.cc

 // 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.
 
 #include <stdint.h>
 
 #include <vector>
 
 #include "base/bind.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 122 matching lines @@
         new CastEnvironment(scoped_ptr<base::TickClock>(testing_clock_).Pass(),
                             task_runner_,
                             task_runner_,
                             task_runner_);
     last_pixel_value_ = kPixelValue;
     net::IPEndPoint dummy_endpoint;
     transport_sender_.reset(new CastTransportSenderImpl(
         NULL,
         testing_clock_,
         dummy_endpoint,
+        make_scoped_ptr(new base::DictionaryValue),
         base::Bind(&UpdateCastTransportStatus),
         BulkRawEventsCallback(),
         base::TimeDelta(),
         task_runner_,
         &transport_));
   }
 
   virtual ~VideoSenderTest() {}
 
   virtual void TearDown() OVERRIDE {
@@ skipping 348 matching lines @@
   cast_feedback.ack_frame_id = 0;
   video_sender_->OnReceivedCastFeedback(cast_feedback);
 
   transport_.SetPause(false);
   RunTasks(33);
   EXPECT_EQ(0, transport_.number_of_rtp_packets());
 }
 
 }  // namespace cast
 }  // namespace media