ServiceWorker: Implement 'source' and 'origin' attributes of ExtendableMessageEvent

content/browser/service_worker/service_worker_version.h

Index: content/browser/service_worker/service_worker_version.h
diff --git a/content/browser/service_worker/service_worker_version.h b/content/browser/service_worker/service_worker_version.h
index 95109ba13d8249703088cc0bc7c7ffabd0dcc5a2..50822bdc25c636c8e7e99af5a31c44ee20bf3422 100644
--- a/content/browser/service_worker/service_worker_version.h
+++ b/content/browser/service_worker/service_worker_version.h
@@ -255,6 +255,7 @@ class CONTENT_EXPORT ServiceWorkerVersion
   // of crbug.com/570820 after ExtendableMessageEvent is implemented
   // (crbug.com/543198).
   void DispatchExtendableMessageEvent(
+      ServiceWorkerProviderHost* sender_provider_host,
       const base::string16& message,
       const std::vector<TransferredMessagePort>& sent_message_ports,
       const StatusCallback& callback);
@@ -523,9 +524,16 @@ class CONTENT_EXPORT ServiceWorkerVersion
 
   void OnStartSentAndScriptEvaluated(ServiceWorkerStatusCode status);
 
+  template <typename SourceInfo>
+  void DispatchExtendableMessageEventInternal(
+      const base::string16& message,
+      const std::vector<TransferredMessagePort>& sent_message_ports,
+      const StatusCallback& callback,
+      const SourceInfo& source_info);
   void DispatchExtendableMessageEventAfterStartWorker(
       const base::string16& message,
       const std::vector<TransferredMessagePort>& sent_message_ports,
+      const ExtendableMessageEventSource& source,
       const StatusCallback& callback);
 
   void DispatchMessageEventInternal(