Add terminateServiceWorker method for layout tests - chromium side

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 <string>
 #include <vector>
 
 #include "base/strings/string16.h"
@@ skipping 142 matching lines @@
                      int /* handle_id */)
 
 // Increments and decrements the ServiceWorkerRegistration object's reference
 // counting in the browser side. The registration object is created with
 // ref-count==1 initially.
 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,
                      int /* provider_id */,
                      int64 /* version_id */)
 
 // Informs the browser that event handling has finished.
 // Routed to the target ServiceWorkerVersion.
 IPC_MESSAGE_ROUTED2(ServiceWorkerHostMsg_InstallEventFinished,
@@ skipping 243 matching lines @@
                      blink::WebServiceWorkerCacheError)
 IPC_MESSAGE_CONTROL2(ServiceWorkerMsg_CacheMatchAllError,
                      int /* request_id */,
                      blink::WebServiceWorkerCacheError)
 IPC_MESSAGE_CONTROL2(ServiceWorkerMsg_CacheKeysError,
                      int /* request_id */,
                      blink::WebServiceWorkerCacheError)
 IPC_MESSAGE_CONTROL2(ServiceWorkerMsg_CacheBatchError,
                      int /* request_id */,
                      blink::WebServiceWorkerCacheError)