Set the "waiting" Service Worker of Service Worker providers

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 5e6dc8703a931ed473730fa0dbcdf4e12a167bd5..c8f8873be6ce0867af9d0a19759ed092afed645b 100644
--- a/content/common/service_worker/service_worker_messages.h
+++ b/content/common/service_worker/service_worker_messages.h
@@ -155,6 +155,13 @@ IPC_MESSAGE_CONTROL3(ServiceWorkerMsg_ServiceWorkerStateChanged,
                      int /* handle_id */,
                      blink::WebServiceWorkerState)
 
+// Tells the child process to set the waiting ServiceWorker for the given
+// provider.
+IPC_MESSAGE_CONTROL3(ServiceWorkerMsg_SetWaitingServiceWorker,
+                     int /* thread_id */,
+                     int /* provider_id */,
+                     content::ServiceWorkerObjectInfo)
+
 // Tells the child process to set the current ServiceWorker for the given
 // provider.
 IPC_MESSAGE_CONTROL3(ServiceWorkerMsg_SetCurrentServiceWorker,