Support DataSaver for SharedWorker

content/renderer/service_worker/service_worker_fetch_context_impl.h

 // 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.
 
 #ifndef CONTENT_RENDERER_SERVICE_WORKER_SERVICE_WORKER_FETCH_CONTEXT_IMPL_H_
 #define CONTENT_RENDERER_SERVICE_WORKER_SERVICE_WORKER_FETCH_CONTEXT_IMPL_H_
 
 #include "content/common/worker_url_loader_factory_provider.mojom.h"
 #include "third_party/WebKit/public/platform/WebWorkerFetchContext.h"
+#include "third_party/WebKit/public/web/WebDataSaverFlag.h"
 
 namespace base {
 class SingleThreadTaskRunner;
 }  // namespace base
 
 namespace content {
 class ResourceDispatcher;
 
 class ServiceWorkerFetchContextImpl : public blink::WebWorkerFetchContext {
  public:
   ServiceWorkerFetchContextImpl(
       mojom::WorkerURLLoaderFactoryProviderPtrInfo provider_info,
       int service_worker_provider_id);
   ~ServiceWorkerFetchContextImpl() override;
 
   // blink::WebWorkerFetchContext implementation:
   void InitializeOnWorkerThread(base::SingleThreadTaskRunner*) override;
   std::unique_ptr<blink::WebURLLoader> CreateURLLoader() override;
   void WillSendRequest(blink::WebURLRequest&) override;
   bool IsControlledByServiceWorker() const override;
-  void SetDataSaverEnabled(bool enabled) override;
-  bool IsDataSaverEnabled() const override;
+  void SetDataSaverFlag(blink::WebDataSaverFlag) override;
+  blink::WebDataSaverFlag DataSaverFlag() const override;
 
  private:
   mojom::WorkerURLLoaderFactoryProviderPtrInfo provider_info_;
   const int service_worker_provider_id_;
 
   // Initialized on the worker thread when InitializeOnWorkerThread() is called.
   std::unique_ptr<ResourceDispatcher> resource_dispatcher_;
   mojom::WorkerURLLoaderFactoryProviderPtr provider_;
   mojom::URLLoaderFactoryAssociatedPtr url_loader_factory_;
 
-  bool is_data_saver_enabled_ = false;
+  blink::WebDataSaverFlag data_saver_flag_ = blink::WebDataSaverFlag::kDisabled;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_SERVICE_WORKER_SERVICE_WORKER_FETCH_CONTEXT_IMPL_H_