Implement the infrastructure of creating WorkerFetchContext in worker global scope.

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

 /*
  * Copyright (C) 2013 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 61 matching lines @@
 #include "platform/loader/fetch/Resource.h"
 #include "platform/loader/fetch/ResourceLoadPriority.h"
 #include "platform/loader/fetch/ResourceLoadingLog.h"
 #include "platform/loader/fetch/ResourceTimingInfo.h"
 #include "platform/loader/fetch/UniqueIdentifier.h"
 #include "platform/mhtml/MHTMLArchive.h"
 #include "platform/network/NetworkStateNotifier.h"
 #include "platform/network/NetworkUtils.h"
 #include "platform/weborigin/SchemeRegistry.h"
 #include "platform/wtf/Vector.h"
+#include "public/platform/Platform.h"
 #include "public/platform/WebCachePolicy.h"
 #include "public/platform/WebInsecureRequestPolicy.h"
 #include "public/platform/WebViewScheduler.h"
 #include "public/platform/modules/serviceworker/WebServiceWorkerNetworkProvider.h"
 
 namespace blink {
 
 namespace {
 
 void EmitWarningForDocWriteScripts(const String& url, Document& document) {
@@ skipping 982 matching lines @@
       !GetFrame()->IsMainFrame())
     return kResourceLoadPriorityVeryLow;
 
   return priority;
 }
 
 RefPtr<WebTaskRunner> FrameFetchContext::LoadingTaskRunner() const {
   return GetFrame()->FrameScheduler()->LoadingTaskRunner();
 }
 
+std::unique_ptr<WebURLLoader> FrameFetchContext::CreateURLLoader() {
+  return Platform::Current()->CreateURLLoader();
+}
+
 DEFINE_TRACE(FrameFetchContext) {
   visitor->Trace(document_loader_);
   BaseFetchContext::Trace(visitor);
 }
 
 }  // namespace blink