Support DataSaver for SharedWorker

third_party/WebKit/Source/core/loader/WorkerFetchContext.cpp

 // 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 "core/loader/WorkerFetchContext.h"
 
 #include "core/frame/Deprecation.h"
 #include "core/frame/UseCounter.h"
 #include "core/workers/WorkerClients.h"
 #include "core/workers/WorkerGlobalScope.h"
 #include "platform/Supplementable.h"
 #include "platform/WebTaskRunner.h"
 #include "platform/exported/WrappedResourceRequest.h"
 #include "platform/loader/fetch/ResourceFetcher.h"
 #include "platform/scheduler/child/web_scheduler.h"
 #include "public/platform/Platform.h"
 #include "public/platform/WebThread.h"
 #include "public/platform/WebURLRequest.h"
 #include "public/platform/WebWorkerFetchContext.h"
+#include "public/web/WebDataSaverFlag.h"
 
 namespace blink {
 
 namespace {
 
 // WorkerFetchContextHolder is used to pass the WebWorkerFetchContext from the
 // main thread to the worker thread by attaching to the WorkerClients as a
 // Supplement.
 class WorkerFetchContextHolder final
     : public GarbageCollectedFinalized<WorkerFetchContextHolder>,
@@ skipping 144 matching lines @@
 }
 
 void WorkerFetchContext::AddAdditionalRequestHeaders(ResourceRequest& request,
                                                      FetchResourceType type) {
   BaseFetchContext::AddAdditionalRequestHeaders(request, type);
 
   // The remaining modifications are only necessary for HTTP and HTTPS.
   if (!request.Url().IsEmpty() && !request.Url().ProtocolIsInHTTPFamily())
     return;
 
-  if (web_context_->IsDataSaverEnabled())
+  if (web_context_->DataSaverFlag() == WebDataSaverFlag::kEnabled)
     request.SetHTTPHeaderField("Save-Data", "on");
 }
 
 DEFINE_TRACE(WorkerFetchContext) {
   visitor->Trace(worker_global_scope_);
   visitor->Trace(resource_fetcher_);
   BaseFetchContext::Trace(visitor);
 }
 
 void ProvideWorkerFetchContextToWorker(
     WorkerClients* clients,
     std::unique_ptr<WebWorkerFetchContext> web_context) {
   DCHECK(clients);
   WorkerFetchContextHolder::ProvideTo(
       *clients, WorkerFetchContextHolder::SupplementName(),
       new WorkerFetchContextHolder(std::move(web_context)));
 }
 
 }  // namespace blink