Partially implement WorkerFetchContext and WorkerThreadableLoadingContext and add virtual tests

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

Index: third_party/WebKit/Source/core/loader/WorkerFetchContext.h
diff --git a/third_party/WebKit/Source/core/loader/WorkerFetchContext.h b/third_party/WebKit/Source/core/loader/WorkerFetchContext.h
index 4a9870669dd5d2d3f19c0519ebd7e701ab7f4fcb..4797358753b5c5595ab817aa9ef102409837e7e9 100644
--- a/third_party/WebKit/Source/core/loader/WorkerFetchContext.h
+++ b/third_party/WebKit/Source/core/loader/WorkerFetchContext.h
@@ -7,15 +7,17 @@
 
 #include <memory>
 #include "core/CoreExport.h"
-#include "platform/loader/fetch/FetchContext.h"
+#include "core/loader/BaseFetchContext.h"
 #include "platform/wtf/Forward.h"
 
 namespace blink {
 
-class WorkerClients;
+class ResourceFetcher;
+class WebTaskRunner;
 class WebURLLoader;
 class WebWorkerFetchContext;
 class WorkerGlobalScope;
+class WorkerClients;
 
 CORE_EXPORT void ProvideWorkerFetchContextToWorker(
     WorkerClients*,
@@ -25,21 +27,49 @@ CORE_EXPORT void ProvideWorkerFetchContextToWorker(
 // service workers). This class is used only when off-main-thread-fetch is
 // enabled, and is still under development.
 // TODO(horo): Implement all methods of FetchContext. crbug.com/443374
-class WorkerFetchContext final : public FetchContext {
+class WorkerFetchContext final : public BaseFetchContext {
  public:
   static WorkerFetchContext* Create(WorkerGlobalScope&);
   virtual ~WorkerFetchContext();
 
+  ResourceFetcher* GetResourceFetcher();
+
+  // BaseFetchContext implementation:
+  ContentSettingsClient* GetContentSettingsClient() const override;
+  Settings* GetSettings() const override;
+  SubresourceFilter* GetSubresourceFilter() const override;
+  SecurityContext* GetParentSecurityContext() const override;
+  bool ShouldBlockRequestByInspector(const ResourceRequest&) const override;
+  void DispatchDidBlockRequest(const ResourceRequest&,
+                               const FetchInitiatorInfo&,
+                               ResourceRequestBlockedReason) const override;
+  void ReportLocalLoadFailed(const KURL&) const override;
+  bool ShouldBypassMainWorldCSP() const override;
+  bool IsSVGImageChromeClient() const override;
+  void CountUsage(UseCounter::Feature) const override;
+  void CountDeprecation(UseCounter::Feature) const override;
+  bool ShouldBlockFetchByMixedContentCheck(
+      const ResourceRequest&,
+      const KURL&,
+      SecurityViolationReportingPolicy) const override;
+
   // FetchContext implementation:
   // TODO(horo): Implement more methods.
   std::unique_ptr<WebURLLoader> CreateURLLoader() override;
   void PrepareRequest(ResourceRequest&, RedirectType) override;
   bool IsControlledByServiceWorker() const override;
+  RefPtr<WebTaskRunner> LoadingTaskRunner() const override;
+
+  DECLARE_VIRTUAL_TRACE();
 
  private:
-  explicit WorkerFetchContext(std::unique_ptr<WebWorkerFetchContext>);
+  WorkerFetchContext(WorkerGlobalScope&,
+                     std::unique_ptr<WebWorkerFetchContext>);
 
+  Member<WorkerGlobalScope> worker_global_scope_;
   std::unique_ptr<WebWorkerFetchContext> web_context_;
+  Member<ResourceFetcher> resource_fetcher_;
+  RefPtr<WebTaskRunner> loading_task_runner_;
 };
 
 }  // namespace blink