ServiceWorker: Implement navigator.serviceWorker.getRegistration [2/3]

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 f940d06a48eabd2335a4da61eccb50f18f30ea70..9eac506a54190116eb5c24cfa27ffbb2a84c872e 100644
--- a/content/common/service_worker/service_worker_messages.h
+++ b/content/common/service_worker/service_worker_messages.h
@@ -90,6 +90,12 @@ IPC_MESSAGE_CONTROL4(ServiceWorkerHostMsg_UnregisterServiceWorker,
                      int /* provider_id */,
                      GURL /* scope (url pattern) */)
 
+IPC_MESSAGE_CONTROL4(ServiceWorkerHostMsg_GetRegistration,
+                     int /* thread_id */,
+                     int /* request_id */,
+                     int /* provider_id */,
+                     GURL /* document_url */)
+
 // Sends a 'message' event to a service worker (renderer->browser).
 IPC_MESSAGE_CONTROL3(ServiceWorkerHostMsg_PostMessageToWorker,
                      int /* handle_id */,
@@ -184,18 +190,25 @@ IPC_MESSAGE_ROUTED1(ServiceWorkerHostMsg_CacheStorageKeys,
 // extract it and dispatch the message to the correct ServiceWorkerDispatcher
 // on the correct thread.
 
-// Response to ServiceWorkerMsg_RegisterServiceWorker.
+// Response to ServiceWorkerHostMsg_RegisterServiceWorker.
 IPC_MESSAGE_CONTROL4(ServiceWorkerMsg_ServiceWorkerRegistered,
                      int /* thread_id */,
                      int /* request_id */,
                      content::ServiceWorkerRegistrationObjectInfo,
                      content::ServiceWorkerVersionAttributes)
 
-// Response to ServiceWorkerMsg_UnregisterServiceWorker.
+// Response to ServiceWorkerHostMsg_UnregisterServiceWorker.
 IPC_MESSAGE_CONTROL2(ServiceWorkerMsg_ServiceWorkerUnregistered,
                      int /* thread_id */,
                      int /* request_id */)
 
+// Response to ServiceWorkerHostMsg_GetRegistration.
+IPC_MESSAGE_CONTROL4(ServiceWorkerMsg_DidGetRegistration,
+                     int /* thread_id */,
+                     int /* request_id */,
+                     content::ServiceWorkerRegistrationObjectInfo,
+                     content::ServiceWorkerVersionAttributes)
+
 // Sent when any kind of registration error occurs during a
 // RegisterServiceWorker handler above.
 IPC_MESSAGE_CONTROL4(ServiceWorkerMsg_ServiceWorkerRegistrationError,
@@ -212,6 +225,14 @@ IPC_MESSAGE_CONTROL4(ServiceWorkerMsg_ServiceWorkerUnregistrationError,
                      blink::WebServiceWorkerError::ErrorType /* code */,
                      base::string16 /* message */)
 
+// Sent when any kind of registration error occurs during a
+// GetRegistration handler above.
+IPC_MESSAGE_CONTROL4(ServiceWorkerMsg_ServiceWorkerGetRegistrationError,
+                     int /* thread_id */,
+                     int /* request_id */,
+                     blink::WebServiceWorkerError::ErrorType /* code */,
+                     base::string16 /* message */)
+
 // Informs the child process that the ServiceWorker's state has changed.
 IPC_MESSAGE_CONTROL3(ServiceWorkerMsg_ServiceWorkerStateChanged,
                      int /* thread_id */,