Almost done: ApplicationDelegate -> ApplicationImplBase conversion.

services/media/factory_service/media_sink_impl.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 "base/logging.h"
 #include "services/media/factory_service/media_sink_impl.h"
 #include "services/media/framework/util/conversion_pipeline_builder.h"
 #include "services/media/framework_mojo/mojo_type_conversions.h"
 
 namespace mojo {
@@ skipping 49 matching lines @@
 
   RCHECK(destination_url == "mojo:audio_server");
 
   // TODO(dalesat): Once we have c++14, get rid of this shared pointer hack.
   std::shared_ptr<StreamType> captured_stream_type(
       media_type.To<std::unique_ptr<StreamType>>().release());
 
   // An AudioTrackController knows how to talk to an audio track, interrogating
   // it for supported stream types and configuring it for the chosen stream
   // type.
-  controller_.reset(new AudioTrackController(destination_url, app()));
+  controller_.reset(new AudioTrackController(destination_url, owner->shell()));
 
   controller_->GetSupportedMediaTypes([this, consumer_ref, producer_ref,
                                        captured_stream_type](
       std::unique_ptr<std::vector<std::unique_ptr<StreamTypeSet>>>
           supported_stream_types) {
     std::unique_ptr<StreamType> producer_stream_type;
 
     // Add transforms to the pipeline to convert from stream_type to a
     // type supported by the track.
     OutputRef out = consumer_ref.output();
@@ skipping 30 matching lines @@
     InterfaceRequest<MediaTimelineControlSite> req) {
   if (!controller_) {
     LOG(ERROR) << "GetTimelineControlSite not implemented for 'nowhere' case";
     abort();
   }
   controller_->GetTimelineControlSite(req.Pass());
 }
 
 }  // namespace media
 }  // namespace mojo