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

content/browser/renderer_host/render_process_host_impl.cc

Index: content/browser/renderer_host/render_process_host_impl.cc
diff --git a/content/browser/renderer_host/render_process_host_impl.cc b/content/browser/renderer_host/render_process_host_impl.cc
index 4a8c291f4f0027aa897444ea5055140e8db61d3c..986e018bcceb7da34cc0b470bd015a7d4cb47421 100644
--- a/content/browser/renderer_host/render_process_host_impl.cc
+++ b/content/browser/renderer_host/render_process_host_impl.cc
@@ -79,6 +79,7 @@
 #include "content/browser/indexed_db/indexed_db_dispatcher_host.h"
 #include "content/browser/loader/resource_message_filter.h"
 #include "content/browser/loader/resource_scheduler_filter.h"
+#include "content/browser/media/audio_output_impl.h"
 #include "content/browser/media/capture/audio_mirroring_manager.h"
 #include "content/browser/media/media_internals.h"
 #include "content/browser/media/midi_host.h"
@@ -1079,6 +1080,9 @@ void RenderProcessHostImpl::RegisterMojoServices() {
       base::Bind(&RenderProcessHostImpl::CreateStoragePartitionService,
                  base::Unretained(this)));
 
+  mojo_application_host_->service_registry()->AddService(
+      base::Bind(&AudioOutputImpl::CreateService, audio_renderer_host_));
+
 #if defined(OS_ANDROID)
   ServiceRegistrarAndroid::RegisterProcessHostServices(
       mojo_application_host_->service_registry_android());