[WIP] off-main-thread loading

third_party/WebKit/public/platform/WebWorkerFetchContext.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 WebWorkerFetchContext_h
+#define WebWorkerFetchContext_h
+
+namespace base {
+class SingleThreadTaskRunner;
+}  // namespace base
+
+namespace blink {
+
+class WebURL;
+class WebURLLoader;
+class WebURLRequest;
+
+class WebWorkerFetchContext {
+ public:
+  virtual ~WebWorkerFetchContext() {}
+  virtual WebURLLoader* createURLLoader() = 0;
+  virtual bool IsControlledByServiceWorker() const { return false; }
+  virtual int64_t serviceWorkerID() const { return -1; }
+  virtual void willSendRequest(WebURLRequest&) {}
+  virtual void didRunContentWithCertificateErrors(const WebURL& url) {}
+  virtual void didDisplayContentWithCertificateErrors(const WebURL& url) {}
+};
+
+class WebWorkerFetchContextInfo {
+ public:
+  virtual ~WebWorkerFetchContextInfo() {}
+  virtual std::unique_ptr<WebWorkerFetchContext> CreateContext(
+      base::SingleThreadTaskRunner*) = 0;
+  virtual void setAppCacheHostID(int) {}
+  virtual void setParentFrameID(int) {}
+  virtual void setServiceWorkerProviderID(int) {}
+  virtual void setIsSecureContext(bool) {}
+  virtual void setIsControlledByServiceWorker(bool) {}
+  // only for main thread
+  virtual void willSendRequest(WebURLRequest&) {}
+};
+
+}  // namespace blink
+
+#endif  // WebWorkerFetchContext_h