Componentize safe_browsing: factor out SafeBrowsingURLRequestContextGetter.

components/safe_browsing/browser/safe_browsing_url_request_context_getter.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 COMPONENTS_SAFE_BROWSING_BROWSER_SAFE_BROWSING_URL_REQUEST_CONTEXT_GETTER_H_
+#define COMPONENTS_SAFE_BROWSING_BROWSER_SAFE_BROWSING_URL_REQUEST_CONTEXT_GETTER_H_
+
+#include "base/files/file_path.h"
+#include "net/url_request/url_request_context_getter.h"
+
+namespace base {
+class SingleThreadTaskRunner;
+}
+
+namespace net {
+class ChannelIDService;
+class CookieStore;
+class HttpNetworkSession;
+class HttpTransactionFactory;
+class URLRequestContext;
+}
+
+namespace safe_browsing {
+
+class SafeBrowsingURLRequestContextGetter
+    : public net::URLRequestContextGetter {
+ public:
+  explicit SafeBrowsingURLRequestContextGetter(
+      scoped_refptr<net::URLRequestContextGetter> system_context_getter,
+      const base::FilePath& user_data_dir);
+
+  // Implementation for net::UrlRequestContextGetter.
+  net::URLRequestContext* GetURLRequestContext() override;
+  scoped_refptr<base::SingleThreadTaskRunner> GetNetworkTaskRunner()
+      const override;
+
+  // Shuts down any pending requests using the getter, and sets |shut_down_| to
+  // true.
+  void ServiceShuttingDown();
+
+  // Disables QUIC. This should not be necessary anymore when
+  // http://crbug.com/678653 is implemented.
+  void DisableQuicOnIOThread();
+
+ protected:
+  ~SafeBrowsingURLRequestContextGetter() override;
+
+ private:
+  base::FilePath GetBaseFilename();
+  base::FilePath CookieFilePath();
+  base::FilePath ChannelIDFilePath();
+
+  bool shut_down_;
+  base::FilePath user_data_dir_;
+
+  scoped_refptr<net::URLRequestContextGetter> system_context_getter_;
+  scoped_refptr<base::SingleThreadTaskRunner> network_task_runner_;
+  std::unique_ptr<net::URLRequestContext> safe_browsing_request_context_;
+  std::unique_ptr<net::CookieStore> safe_browsing_cookie_store_;
+  std::unique_ptr<net::ChannelIDService> channel_id_service_;
+  std::unique_ptr<net::HttpNetworkSession> http_network_session_;
+  std::unique_ptr<net::HttpTransactionFactory> http_transaction_factory_;
+};
+
+}  // namespace safe_browsing
+
+#endif  // COMPONENTS_SAFE_BROWSING_BROWSER_SAFE_BROWSING_URL_REQUEST_CONTEXT_GETTER_H_