DataSaver support for off-main-thread-fetch

content/renderer/service_worker/service_worker_fetch_context_impl.cc

 // Copyright 2017 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.
 
 #include "content/renderer/service_worker/service_worker_fetch_context_impl.h"
 
 #include "content/child/request_extra_data.h"
 #include "content/child/resource_dispatcher.h"
 #include "content/child/web_url_loader_impl.h"
 
@@ skipping 28 matching lines @@
   extra_data->set_service_worker_provider_id(service_worker_provider_id_);
   extra_data->set_originated_from_service_worker(true);
   extra_data->set_initiated_in_secure_context(true);
   request.SetExtraData(extra_data);
 }
 
 bool ServiceWorkerFetchContextImpl::IsControlledByServiceWorker() const {
   return false;
 }
 
+void ServiceWorkerFetchContextImpl::SetDataSaverEnabled(bool enabled) {
+  is_data_saver_enabled_ = enabled;
+}
+
+bool ServiceWorkerFetchContextImpl::IsDataSaverEnabled() const {
+  return is_data_saver_enabled_;
+}
+
 }  // namespace content