Support dispatching ServiceWorker FetchEvent and receiving response

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 "base/strings/string16.h"
 #include "content/common/service_worker/service_worker_status_code.h"
 #include "content/common/service_worker/service_worker_types.h"
 #include "ipc/ipc_message_macros.h"
 #include "ipc/ipc_param_traits.h"
 #include "third_party/WebKit/public/platform/WebServiceWorkerError.h"
 #include "url/gurl.h"
 
 #undef IPC_MESSAGE_EXPORT
 #define IPC_MESSAGE_EXPORT CONTENT_EXPORT
 
 #define IPC_MESSAGE_START ServiceWorkerMsgStart
 
 IPC_ENUM_TRAITS_MAX_VALUE(blink::WebServiceWorkerError::ErrorType,
                           blink::WebServiceWorkerError::ErrorTypeLast)
 
 IPC_STRUCT_TRAITS_BEGIN(content::ServiceWorkerFetchRequest)
   IPC_STRUCT_TRAITS_MEMBER(url)
   IPC_STRUCT_TRAITS_MEMBER(method)
   IPC_STRUCT_TRAITS_MEMBER(headers)
 IPC_STRUCT_TRAITS_END()
 
-IPC_STRUCT_TRAITS_BEGIN(content::ServiceWorkerFetchResponse)
+IPC_ENUM_TRAITS_MAX_VALUE(content::ServiceWorkerFetchEventResult,
+                          content::SERVICE_WORKER_FETCH_EVENT_LAST)
+
+IPC_STRUCT_TRAITS_BEGIN(content::ServiceWorkerResponse)
   IPC_STRUCT_TRAITS_MEMBER(status_code)
   IPC_STRUCT_TRAITS_MEMBER(status_text)
   IPC_STRUCT_TRAITS_MEMBER(method)
   IPC_STRUCT_TRAITS_MEMBER(headers)
 IPC_STRUCT_TRAITS_END()
 
 // Messages sent from the child process to the browser.
 
 IPC_MESSAGE_CONTROL4(ServiceWorkerHostMsg_RegisterServiceWorker,
                      int32 /* thread_id */,
@@ skipping 43 matching lines @@
 // Informs the browser of a ServiceWorkerProvider being destroyed.
 IPC_MESSAGE_CONTROL1(ServiceWorkerHostMsg_ProviderDestroyed,
                      int /* provider_id */)
 
 // Informs the browser that install event handling has finished.
 // Sent via EmbeddedWorker. If there was an exception during the
 // event handling it'll be reported back separately (to be propagated
 // to the documents).
 IPC_MESSAGE_CONTROL0(ServiceWorkerHostMsg_InstallEventFinished)
 
-  // Informs the browser that fetch event handling has finished.
-IPC_MESSAGE_CONTROL1(ServiceWorkerHostMsg_FetchEventFinished,
-                     content::ServiceWorkerFetchResponse)
+// Informs the browser that fetch event handling has finished.
+IPC_MESSAGE_CONTROL2(ServiceWorkerHostMsg_FetchEventFinished,
+                     content::ServiceWorkerFetchEventResult,
+                     content::ServiceWorkerResponse)