Implement the infrastructure of creating WorkerFetchContext in worker global scope.

third_party/WebKit/Source/web/WebSharedWorkerImpl.cpp

 /*
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 19 matching lines @@
 
 #include "web/WebSharedWorkerImpl.h"
 
 #include <memory>
 #include "core/dom/Document.h"
 #include "core/events/MessageEvent.h"
 #include "core/inspector/ConsoleMessage.h"
 #include "core/loader/FrameLoadRequest.h"
 #include "core/loader/FrameLoader.h"
 #include "core/loader/ThreadableLoadingContext.h"
+#include "core/loader/WorkerFetchContext.h"
 #include "core/probe/CoreProbes.h"
 #include "core/workers/ParentFrameTaskRunners.h"
 #include "core/workers/SharedWorkerGlobalScope.h"
 #include "core/workers/SharedWorkerThread.h"
 #include "core/workers/WorkerClients.h"
 #include "core/workers/WorkerGlobalScope.h"
 #include "core/workers/WorkerInspectorProxy.h"
 #include "core/workers/WorkerLoaderProxy.h"
 #include "core/workers/WorkerScriptLoader.h"
 #include "core/workers/WorkerThreadStartupData.h"
 #include "platform/CrossThreadFunctional.h"
+#include "platform/RuntimeEnabledFeatures.h"
 #include "platform/heap/Handle.h"
 #include "platform/heap/Persistent.h"
 #include "platform/loader/fetch/ResourceResponse.h"
 #include "platform/network/ContentSecurityPolicyParsers.h"
 #include "platform/weborigin/KURL.h"
 #include "platform/weborigin/SecurityOrigin.h"
 #include "platform/wtf/Functional.h"
 #include "platform/wtf/PtrUtil.h"
 #include "public/platform/Platform.h"
 #include "public/platform/WebMessagePortChannel.h"
 #include "public/platform/WebString.h"
 #include "public/platform/WebURL.h"
 #include "public/platform/WebURLRequest.h"
+#include "public/platform/WebWorkerFetchContext.h"
 #include "public/platform/modules/serviceworker/WebServiceWorkerNetworkProvider.h"
 #include "public/web/WebDevToolsAgent.h"
 #include "public/web/WebFrame.h"
 #include "public/web/WebSettings.h"
 #include "public/web/WebView.h"
 #include "public/web/WebWorkerContentSettingsClientProxy.h"
 #include "web/IndexedDBClientImpl.h"
 #include "web/LocalFileSystemClient.h"
 #include "web/WebDataSourceImpl.h"
 #include "web/WebLocalFrameImpl.h"
@@ skipping 258 matching lines @@
   WorkerClients* worker_clients = WorkerClients::Create();
   ProvideLocalFileSystemToWorker(worker_clients,
                                  LocalFileSystemClient::Create());
   WebSecurityOrigin web_security_origin(loading_document_->GetSecurityOrigin());
   ProvideContentSettingsClientToWorker(
       worker_clients,
       WTF::WrapUnique(client_->CreateWorkerContentSettingsClientProxy(
           web_security_origin)));
   ProvideIndexedDBClientToWorker(worker_clients,
                                  IndexedDBClientImpl::Create(*worker_clients));
+
+  if (RuntimeEnabledFeatures::offMainThreadFetchEnabled()) {
+    std::unique_ptr<WebWorkerFetchContext> web_worker_fetch_context =
+        WTF::WrapUnique(client_->CreateWorkerFetchContext());
+    DCHECK(web_worker_fetch_context);

[kinuko, 2017/04/20 04:08:14]

We could get ServiceWorkerNetworkProvider here and set necessary info too, is
that right?

[horo, 2017/04/20 08:35:43]

Done.

+    // TODO(horo): Set more information about the context (ex: DataSaverEnabled)
+    // to |web_worker_fetch_context|.
+    ProvideWorkerFetchContextToWorker(worker_clients,
+                                      std::move(web_worker_fetch_context));
+  }
+
   ContentSecurityPolicy* content_security_policy =
       main_script_loader_->ReleaseContentSecurityPolicy();
   WorkerThreadStartMode start_mode =
       worker_inspector_proxy_->WorkerStartMode(document);
   std::unique_ptr<WorkerSettings> worker_settings =
       WTF::WrapUnique(new WorkerSettings(document->GetSettings()));
   std::unique_ptr<WorkerThreadStartupData> startup_data =
       WorkerThreadStartupData::Create(
           url_, loading_document_->UserAgent(),
           main_script_loader_->SourceText(), nullptr, start_mode,
@@ skipping 64 matching lines @@
                                                   const WebString& method,
                                                   const WebString& message) {
   if (asked_to_terminate_)
     return;
   WebDevToolsAgent* devtools_agent = main_frame_->DevToolsAgent();
   if (devtools_agent)
     devtools_agent->DispatchOnInspectorBackend(session_id, call_id, method,
                                                message);
 }
 
+WebServiceWorkerNetworkProvider*
+WebSharedWorkerImpl::GetServiceWorkerNetworkProvider() {
+  WebLocalFrameImpl* webFrame =
+      WebLocalFrameImpl::FromFrame(main_frame_->GetFrame());
+  return webFrame->DataSource()->GetServiceWorkerNetworkProvider();
+}
+
 WebSharedWorker* WebSharedWorker::Create(WebSharedWorkerClient* client) {
   return new WebSharedWorkerImpl(client);
 }
 
 }  // namespace blink