Adding slightly clearer separation between SW and EmbeddedWorker (still incomplete)

content/browser/service_worker/embedded_worker_registry.h

Index: content/browser/service_worker/embedded_worker_registry.h
diff --git a/content/browser/service_worker/embedded_worker_registry.h b/content/browser/service_worker/embedded_worker_registry.h
index ab6735f33dede07f6bc44b72a9ec5893d0591442..d9c9d96221be1742f830997426a8264d33255a73 100644
--- a/content/browser/service_worker/embedded_worker_registry.h
+++ b/content/browser/service_worker/embedded_worker_registry.h
@@ -52,6 +52,8 @@ class CONTENT_EXPORT EmbeddedWorkerRegistry
   // ServiceWorkerDispatcherHost.
   void OnWorkerStarted(int process_id, int thread_id, int embedded_worker_id);
   void OnWorkerStopped(int process_id, int embedded_worker_id);
+  void OnSendMessageToBrowser(int embedded_worker_id,
+                              const IPC::Message& message);
 
   // Keeps a map from process_id to sender information.
   void AddChildProcessSender(int process_id, IPC::Sender* sender);