service worker: Relax the BadMessageReceived call in OnSetHostedVersionId

content/common/service_worker/service_worker_messages.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Message definition file, included multiple times, hence no include guard.
 
 #include <stdint.h>
 
 #include <string>
 #include <vector>
@@ skipping 226 matching lines @@
 IPC_MESSAGE_CONTROL1(ServiceWorkerHostMsg_IncrementRegistrationRefCount,
                      int /* registration_handle_id */)
 IPC_MESSAGE_CONTROL1(ServiceWorkerHostMsg_DecrementRegistrationRefCount,
                      int /* registration_handle_id */)
 
 // Tells the browser to terminate a service worker. Used in layout tests to
 // verify behavior when a service worker isn't running.
 IPC_MESSAGE_CONTROL1(ServiceWorkerHostMsg_TerminateWorker,
                      int /* handle_id */)
 
-// Informs the browser that |provider_id| is associated
-// with a service worker script running context and
-// |version_id| identifies which ServiceWorkerVersion.
-IPC_MESSAGE_CONTROL2(ServiceWorkerHostMsg_SetVersionId,
+// Informs the browser that a service worker is starting up in a provider.
+// |provider_id| identifies the ServiceWorkerProviderHost hosting the service
+// worker. |version_id| identifies the ServiceWorkerVersion and
+// |embedded_worker_id| identifies the EmbeddedWorkerInstance.
+IPC_MESSAGE_CONTROL3(ServiceWorkerHostMsg_SetVersionId,
                      int /* provider_id */,
-                     int64_t /* version_id */)
+                     int64_t /* version_id */,
+                     int /* embedded_worker_id */)
 
 // Informs the browser that event handling has finished.
 // Routed to the target ServiceWorkerVersion.
 IPC_MESSAGE_ROUTED3(ServiceWorkerHostMsg_InstallEventFinished,
                     int /* request_id */,
                     blink::WebServiceWorkerEventResult,
                     bool /* has_fetch_event_handler */)
 
 IPC_MESSAGE_ROUTED2(ServiceWorkerHostMsg_ActivateEventFinished,
                     int /* request_id */,
@@ skipping 273 matching lines @@
 
 // Sent via EmbeddedWorker as a response of NavigateClient.
 IPC_MESSAGE_CONTROL2(ServiceWorkerMsg_NavigateClientResponse,
                      int /* request_id */,
                      content::ServiceWorkerClientInfo /* client */)
 
 // Sent via EmbeddedWorker as an error response of NavigateClient.
 IPC_MESSAGE_CONTROL2(ServiceWorkerMsg_NavigateClientError,
                      int /* request_id */,
                      GURL /* url */)