Switch stream creation and closing in Chrome audio rendering from IPC to Mojo

content/browser/frame_host/render_frame_host_impl.cc

Index: content/browser/frame_host/render_frame_host_impl.cc
diff --git a/content/browser/frame_host/render_frame_host_impl.cc b/content/browser/frame_host/render_frame_host_impl.cc
index a22c5e05d281a7cb633642b32a5836025bf1f183..62e6fcd9aa0ce02516436916463ae5f64c205d5c 100644
--- a/content/browser/frame_host/render_frame_host_impl.cc
+++ b/content/browser/frame_host/render_frame_host_impl.cc
@@ -39,6 +39,7 @@
 #include "content/browser/frame_host/render_widget_host_view_child_frame.h"
 #include "content/browser/geolocation/geolocation_service_context.h"
 #include "content/browser/loader/resource_dispatcher_host_impl.h"
+#include "content/browser/media/audio_output_impl.h"
 #include "content/browser/permissions/permission_service_context.h"
 #include "content/browser/permissions/permission_service_impl.h"
 #include "content/browser/presentation/presentation_service_impl.h"
@@ -318,6 +319,15 @@ RenderFrameHostImpl::~RenderFrameHostImpl() {
   frame_tree_->ReleaseRenderViewHostRef(render_view_host_);
 }
 
+AudioOutputImpl* RenderFrameHostImpl::GetAudioOutputImpl() {
+  return audio_output_impl_;
+}
+
+void RenderFrameHostImpl::SetAudioOutputImpl(
+    AudioOutputImpl* audio_output_impl) {
+  audio_output_impl_ = audio_output_impl;
+}
+
 int RenderFrameHostImpl::GetRoutingID() {
   return routing_id_;
 }
@@ -1975,6 +1985,9 @@ void RenderFrameHostImpl::RegisterMojoServices() {
   GetServiceRegistry()->AddService<shell::mojom::Connector>(base::Bind(
       &FrameMojoShell::BindRequest, base::Unretained(frame_mojo_shell_.get())));
 
+  GetServiceRegistry()->AddService(
+      base::Bind(&AudioOutputImpl::CreateService, process_, routing_id_));
+
 #if defined(ENABLE_WEBVR)
   const base::CommandLine& browser_command_line =
       *base::CommandLine::ForCurrentProcess();