Mojo interfaces needed for switching audio rendering stream creation and closing from IPC to Mojo

content/renderer/render_thread_impl.cc

 // Copyright (c) 2012 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 "content/renderer/render_thread_impl.h"
 
 #include <algorithm>
 #include <limits>
 #include <map>
 #include <utility>
@@ skipping 711 matching lines @@
 
 #endif  // defined(ENABLE_WEBRTC)
 
   audio_input_message_filter_ =
       new AudioInputMessageFilter(GetIOMessageLoopProxy());
   AddFilter(audio_input_message_filter_.get());
 
   audio_message_filter_ = new AudioMessageFilter(GetIOMessageLoopProxy());
   AddFilter(audio_message_filter_.get());
 
+  audio_message_filter_->SetAudioOutputClient(
+    new AudioOutputClient(GetServiceRegistry(), audio_message_filter_.get()));
+
   midi_message_filter_ = new MidiMessageFilter(GetIOMessageLoopProxy());
   AddFilter(midi_message_filter_.get());
 
   bluetooth_message_filter_ = new BluetoothMessageFilter(thread_safe_sender());
   AddFilter(bluetooth_message_filter_->GetFilter());
 
   AddFilter((new IndexedDBMessageFilter(thread_safe_sender()))->GetFilter());
 
   AddFilter((new CacheStorageMessageFilter(thread_safe_sender()))->GetFilter());
 
@@ skipping 1400 matching lines @@
 }
 
 void RenderThreadImpl::PendingRenderFrameConnect::OnConnectionError() {
   size_t erased =
       RenderThreadImpl::current()->pending_render_frame_connects_.erase(
           routing_id_);
   DCHECK_EQ(1u, erased);
 }
 
 }  // namespace content