Revert 258831 "Revert 258727 "Implement ServiceWorker::postMessage()""

content/common/service_worker/service_worker_messages.h

Index: content/common/service_worker/service_worker_messages.h
diff --git a/content/common/service_worker/service_worker_messages.h b/content/common/service_worker/service_worker_messages.h
index 135761f9a21049f9ef480de9ae1c2b22a618a28f..c4af2717f2e3c8a3c08641a5fb6953717727df70 100644
--- a/content/common/service_worker/service_worker_messages.h
+++ b/content/common/service_worker/service_worker_messages.h
@@ -49,6 +49,12 @@ IPC_MESSAGE_CONTROL3(ServiceWorkerHostMsg_UnregisterServiceWorker,
                      int32 /* request_id */,
                      GURL /* scope (url pattern) */)
 
+// Sends a 'message' event to a service worker (renderer->browser).
+IPC_MESSAGE_CONTROL3(ServiceWorkerHostMsg_PostMessage,
+                     int64 /* registration_id */,
+                     base::string16 /* message */,
+                     std::vector<int> /* sent_message_port_ids */)
+
 // Messages sent from the browser to the child process.
 
 // Response to ServiceWorkerMsg_RegisterServiceWorker
@@ -78,6 +84,12 @@ IPC_MESSAGE_CONTROL1(ServiceWorkerMsg_InstallEvent,
 IPC_MESSAGE_CONTROL1(ServiceWorkerMsg_FetchEvent,
                      content::ServiceWorkerFetchRequest)
 
+// Sends a 'message' event to a service worker (browser->EmbeddedWorker).
+IPC_MESSAGE_CONTROL3(ServiceWorkerMsg_Message,
+                     base::string16 /* message */,
+                     std::vector<int> /* sent_message_port_ids */,
+                     std::vector<int> /* new_routing_ids */)
+
 // Informs the browser of a new ServiceWorkerProvider in the child process,
 // |provider_id| is unique within its child process.
 IPC_MESSAGE_CONTROL1(ServiceWorkerHostMsg_ProviderCreated,