Add audio signal to the ResourceScheduler.

content/browser/renderer_host/render_view_host_factory.cc

Index: content/browser/renderer_host/render_view_host_factory.cc
diff --git a/content/browser/renderer_host/render_view_host_factory.cc b/content/browser/renderer_host/render_view_host_factory.cc
index 5cffd134b8e4e3bdef3ba93cd88c0e20ecac91b4..0b2edf21f0d6c27719d8ac82a70ced8ac05c368a 100644
--- a/content/browser/renderer_host/render_view_host_factory.cc
+++ b/content/browser/renderer_host/render_view_host_factory.cc
@@ -26,8 +26,14 @@ RenderViewHost* RenderViewHostFactory::Create(
                                           routing_id, main_frame_routing_id,
                                           swapped_out);
   }
-  return new RenderViewHostImpl(instance, delegate, widget_delegate, routing_id,
-                                main_frame_routing_id, swapped_out, hidden);
+  return new RenderViewHostImpl(instance,
+                                delegate,
+                                widget_delegate,
+                                routing_id,
+                                main_frame_routing_id,
+                                swapped_out,
+                                hidden,
+                                true /* has_initialized_audio_host */);
 }
 
 // static