[Payments] Implement openWindow for service worker based payment handler

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 ef5a82603f3ad008980345e9460d5ba090865388..807d8fb6c8460618347ff030edc6eb2148ab759c 100644
--- a/content/common/service_worker/service_worker_messages.h
+++ b/content/common/service_worker/service_worker_messages.h
@@ -272,9 +272,10 @@ IPC_MESSAGE_ROUTED2(ServiceWorkerHostMsg_SetCachedMetadata,
 IPC_MESSAGE_ROUTED1(ServiceWorkerHostMsg_ClearCachedMetadata, GURL /* url */)
 
 // Ask the browser to open a tab/window (renderer->browser).
-IPC_MESSAGE_ROUTED2(ServiceWorkerHostMsg_OpenWindow,
+IPC_MESSAGE_ROUTED3(ServiceWorkerHostMsg_OpenWindow,
                     int /* request_id */,
-                    GURL /* url */)
+                    GURL /* redirect_url */,
+                    GURL /* url_to_open */)
 
 // Ask the browser to focus a client (renderer->browser).
 IPC_MESSAGE_ROUTED2(ServiceWorkerHostMsg_FocusClient,