AssociatedURLLoader shouldn't derive from WebURLLoader

content/renderer/fetchers/associated_resource_fetcher_impl.h

+// Copyright 2016 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 CONTENT_RENDERER_FETCHERS_ASSOCIATED_RESOURCE_FETCHER_IMPL_H_
+#define CONTENT_RENDERER_FETCHERS_ASSOCIATED_RESOURCE_FETCHER_IMPL_H_
+
+#include <memory>
+#include <string>
+
+#include "base/callback.h"
+#include "base/compiler_specific.h"
+#include "base/macros.h"
+#include "base/timer/timer.h"
+#include "content/public/renderer/associated_resource_fetcher.h"
+#include "third_party/WebKit/public/platform/WebURLRequest.h"
+#include "third_party/WebKit/public/web/WebAssociatedURLLoaderOptions.h"
+
+class GURL;
+
+namespace blink {
+class WebAssociatedURLLoader;
+class WebFrame;
+class WebURLLoader;
+enum class WebCachePolicy;
+}
+
+namespace content {
+
+class AssociatedResourceFetcherImpl : public AssociatedResourceFetcher {
+ public:
+  // AssociatedResourceFetcher implementation:
+  void SetSkipServiceWorker(
+      blink::WebURLRequest::SkipServiceWorker skip_service_worker) override;
+  void SetCachePolicy(blink::WebCachePolicy policy) override;
+  void SetLoaderOptions(
+      const blink::WebAssociatedURLLoaderOptions& options) override;
+  void Start(blink::WebFrame* frame,
+             blink::WebURLRequest::RequestContext request_context,
+             blink::WebURLRequest::FrameType frame_type,
+             const Callback& callback) override;
+
+ private:
+  friend class AssociatedResourceFetcher;
+
+  class ClientImpl;
+
+  explicit AssociatedResourceFetcherImpl(const GURL& url);
+
+  ~AssociatedResourceFetcherImpl() override;
+
+  void Cancel() override;
+
+  std::unique_ptr<blink::WebAssociatedURLLoader> loader_;
+  std::unique_ptr<ClientImpl> client_;
+
+  // Options to send to the loader.
+  blink::WebAssociatedURLLoaderOptions options_;
+
+  // Request to send.
+  blink::WebURLRequest request_;
+
+  // Limit how long to wait for the server.
+  base::OneShotTimer timeout_timer_;
+
+  DISALLOW_COPY_AND_ASSIGN(AssociatedResourceFetcherImpl);
+};
+
+}  // namespace content
+
+#endif  // CONTENT_RENDERER_FETCHERS_ASSOCIATED_RESOURCE_FETCHER_IMPL_H_