Convert the async device ID getter to a chrome resource host

content/browser/renderer_host/render_message_filter.h

Index: content/browser/renderer_host/render_message_filter.h
diff --git a/content/browser/renderer_host/render_message_filter.h b/content/browser/renderer_host/render_message_filter.h
index 0ab0135229166cf837ae0a21bd09ac3ced49c048..51596a212d23414f576746ba7cf7dad1385a52e9 100644
--- a/content/browser/renderer_host/render_message_filter.h
+++ b/content/browser/renderer_host/render_message_filter.h
@@ -167,6 +167,11 @@ class RenderMessageFilter : public BrowserMessageFilter {
                              IPC::Message* reply_msg);
   void OnOpenChannelToPepperPlugin(const FilePath& path,
                                    IPC::Message* reply_msg);
+  void OnDidCreateOutOfProcessPepperInstance(int plugin_child_id,
+                                             int32 pp_instance,
+                                             int render_view_id);
+  void OnDidDeleteOutOfProcessPepperInstance(int plugin_child_id,
+                                             int32 pp_instance);
   void OnOpenChannelToPpapiBroker(int routing_id,
                                   int request_id,
                                   const FilePath& path);