Reduce/Remove URLRequest dependencies from AppCacheRequestHandler

content/browser/appcache/appcache_url_loader_request.h

+// Copyright (c) 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 CONTENT_BROWSER_APPCACHE_APPCACHE_URL_LOADER_REQUEST_H_
+#define CONTENT_BROWSER_APPCACHE_APPCACHE_URL_LOADER_REQUEST_H_
+
+#include "content/browser/appcache/appcache_request.h"
+#include "content/common/resource_request.h"
+
+namespace content {
+
+// AppCacheRequest wrapper for the ResourceRequest class for users of
+// URLLoader.
+class CONTENT_EXPORT AppCacheURLLoaderRequest : public AppCacheRequest {
+ public:
+  // Factory function to create an instance of the AppCacheResourceRequest
+  // class.
+  static AppCacheURLLoaderRequest* Create(const ResourceRequest& request);
+
+  // AppCacheRequest overrides.
+  // TODO(ananta)
+  // Add support to the GetURL() call to return the updated URL while following
+  // a chain of redirects.
+  const GURL& GetURL() const override;
+  const std::string& GetMethod() const override;
+  const GURL& GetFirstPartyForCookies() const override;
+  const GURL GetReferrer() const override;
+  // TODO(ananta)
+  // ResourceRequest only identifies the request unlike URLRequest which
+  // contains response information as well. We need the following methods to
+  // work for AppCache. Look into this.
+  bool IsSuccess() const override;
+  bool IsCancelled() const override;
+  bool IsError() const override;
+  int GetResponseCode() const override;
+  std::string GetResponseHeaderByName(const std::string& name) const override;
+
+  ResourceRequest* GetResourceRequest() override;
+
+ protected:
+  explicit AppCacheURLLoaderRequest(const ResourceRequest& request);
+  ~AppCacheURLLoaderRequest() override;
+
+ private:
+  ResourceRequest request_;
+
+  DISALLOW_COPY_AND_ASSIGN(AppCacheURLLoaderRequest);
+};
+
+}  // namespace content
+
+#endif  // CONTENT_BROWSER_APPCACHE_APPCACHE_URL_LOADER_REQUEST_H_