[ServiceWorker] Fetch event should return integrity value

content/common/resource_messages.h

 // Copyright (c) 2012 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.
 
 // IPC messages for resource loading.
 //
 // NOTE: All messages must send an |int request_id| as their first parameter.
 
 // Multiply-included message file, hence no include guard.
 
@@ skipping 252 matching lines @@
   IPC_STRUCT_TRAITS_MEMBER(priority)
   IPC_STRUCT_TRAITS_MEMBER(request_context)
   IPC_STRUCT_TRAITS_MEMBER(appcache_host_id)
   IPC_STRUCT_TRAITS_MEMBER(should_reset_appcache)
   IPC_STRUCT_TRAITS_MEMBER(service_worker_provider_id)
   IPC_STRUCT_TRAITS_MEMBER(originated_from_service_worker)
   IPC_STRUCT_TRAITS_MEMBER(service_worker_mode)
   IPC_STRUCT_TRAITS_MEMBER(fetch_request_mode)
   IPC_STRUCT_TRAITS_MEMBER(fetch_credentials_mode)
   IPC_STRUCT_TRAITS_MEMBER(fetch_redirect_mode)
+  IPC_STRUCT_TRAITS_MEMBER(fetch_integrity)
   IPC_STRUCT_TRAITS_MEMBER(fetch_request_context_type)
   IPC_STRUCT_TRAITS_MEMBER(fetch_mixed_content_context_type)
   IPC_STRUCT_TRAITS_MEMBER(fetch_frame_type)
   IPC_STRUCT_TRAITS_MEMBER(request_body)
   IPC_STRUCT_TRAITS_MEMBER(download_to_file)
   IPC_STRUCT_TRAITS_MEMBER(has_user_gesture)
   IPC_STRUCT_TRAITS_MEMBER(enable_load_timing)
   IPC_STRUCT_TRAITS_MEMBER(enable_upload_progress)
   IPC_STRUCT_TRAITS_MEMBER(do_not_prompt_for_login)
   IPC_STRUCT_TRAITS_MEMBER(render_frame_id)
@@ skipping 125 matching lines @@
 
 // Sent when the renderer process deletes a resource loader.
 IPC_MESSAGE_CONTROL1(ResourceHostMsg_ReleaseDownloadedFile,
                      int /* request_id */)
 
 // Sent by the renderer when a resource request changes priority.
 IPC_MESSAGE_CONTROL3(ResourceHostMsg_DidChangePriority,
                      int /* request_id */,
                      net::RequestPriority,
                      int /* intra_priority_value */)