Convert the async device ID getter to a chrome resource host

content/browser/ppapi_plugin_process_host.h

Index: content/browser/ppapi_plugin_process_host.h
diff --git a/content/browser/ppapi_plugin_process_host.h b/content/browser/ppapi_plugin_process_host.h
index de57b52b88e9569fcd73e4a1f609809bc97046a0..3c6576c61d267e6a42dacc20b1bfab11f40568cf 100644
--- a/content/browser/ppapi_plugin_process_host.h
+++ b/content/browser/ppapi_plugin_process_host.h
@@ -80,6 +80,19 @@ class PpapiPluginProcessHost : public content::BrowserChildProcessHostDelegate,
   static PpapiPluginProcessHost* CreateBrokerHost(
       const content::PepperPluginInfo& info);
 
+  // Notification that a PP_Instance has been created for the given
+  // RenderView/Process pair for the given plugin. This is necessary so that
+  // when the plugin calls us with a PP_Instance we can find the RenderView
+  // associated with it without trusting the plugin.
+  static void DidCreateOutOfProcessInstance(int plugin_process_id,
+                                            int32 pp_instance,
+                                            int render_process_id,
+                                            int render_view_id);
+
+  // The opposite of DIdCreate... above.
+  static void DidDeleteOutOfProcessInstance(int plugin_process_id,
+                                            int32 pp_instance);
+
   // IPC::Sender implementation:
   virtual bool Send(IPC::Message* message) OVERRIDE;