ServiceWorker: Move ExtendableMessageEvent dispatching out of ServiceWorkerVersion

content/browser/service_worker/service_worker_dispatcher_host.h

Index: content/browser/service_worker/service_worker_dispatcher_host.h
diff --git a/content/browser/service_worker/service_worker_dispatcher_host.h b/content/browser/service_worker/service_worker_dispatcher_host.h
index 4b1fb949390db52ae92f6af8b3722f9b91e123b3..e1f57d02aa314e9841cef85eb2f8cc2fecd69dd3 100644
--- a/content/browser/service_worker/service_worker_dispatcher_host.h
+++ b/content/browser/service_worker/service_worker_dispatcher_host.h
@@ -154,6 +154,23 @@ class CONTENT_EXPORT ServiceWorkerDispatcherHost : public BrowserMessageFilter {
 
   void OnTerminateWorker(int handle_id);
 
+  template <typename SourceInfo>
+  void DispatchExtendableMessageEvent(
+      scoped_refptr<ServiceWorkerVersion> worker,
+      const base::string16& message,
+      const url::Origin& source_origin,
+      const std::vector<TransferredMessagePort>& sent_message_ports,
+      const SourceInfo& source_info);
+  void DispatchExtendableMessageEventAfterStartWorker(
+      scoped_refptr<ServiceWorkerVersion> worker,
+      const base::string16& message,
+      const url::Origin& source_origin,
+      const std::vector<TransferredMessagePort>& sent_message_ports,
+      const ExtendableMessageEventSource& source);
+  void DidFailToDispatchExtendableMessageEvent(
+      const std::vector<TransferredMessagePort>& sent_message_ports,
+      ServiceWorkerStatusCode status);
+
   ServiceWorkerRegistrationHandle* FindRegistrationHandle(
       int provider_id,
       int64_t registration_handle_id);