Motown: Use new TimelineTransform and related definitions

services/media/factory_service/audio_track_controller.cc

 // Copyright 2016 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 <list>
 
 #include "base/bind_helpers.h"
 #include "base/logging.h"
 #include "mojo/public/cpp/application/connect.h"
 #include "mojo/services/media/audio/interfaces/audio_server.mojom.h"
@@ skipping 27 matching lines @@
 
 void AudioTrackController::Configure(
     const std::unique_ptr<StreamType>& stream_type,
     const ConfigureCallback& callback) {
   AudioTrackConfigurationPtr config = AudioTrackConfiguration::New();
   config->media_type = MediaType::From(stream_type);
 
   MediaConsumerPtr consumer;
   audio_track_->Configure(config.Pass(), GetProxy(&consumer));
 
-  RateControlPtr rate_control;
-  audio_track_->GetRateControl(GetProxy(&rate_control));
+  MediaTimelineControlSitePtr timeline_control_site;
+  audio_track_->GetTimelineControlSite(GetProxy(&timeline_control_site));
 
-  callback(consumer.Pass(), rate_control.Pass());
+  callback(consumer.Pass(), timeline_control_site.Pass());
 }
 
 }  // namespace media
 }  // namespace mojo