Adding WebContent-free Download

content/browser/download/url_downloader.h

+// Copyright 2015 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_DOWNLOAD_URL_DOWNLOADER_H_
+#define CONTENT_BROWSER_DOWNLOAD_URL_DOWNLOADER_H_
+
+#include "base/memory/scoped_ptr.h"
+#include "base/memory/weak_ptr.h"
+#include "content/browser/download/download_request_core.h"
+#include "content/public/browser/download_save_info.h"
+#include "content/public/browser/download_url_parameters.h"
+#include "content/public/common/referrer.h"
+#include "net/url_request/redirect_info.h"
+#include "net/url_request/url_request.h"
+
+namespace content {
+class DownloadManagerImpl;
+class DownloadRequestCore;
+
+class UrlDownloader : public net::URLRequest::Delegate {
+ public:
+  UrlDownloader(scoped_ptr<net::URLRequest> request,
+                scoped_ptr<DownloadRequestCore> handler,
+                base::WeakPtr<DownloadManagerImpl> manager);
+  ~UrlDownloader() override;
+
+  static scoped_ptr<UrlDownloader> BeginDownload(
+      base::WeakPtr<DownloadManagerImpl> download_manager,
+      scoped_ptr<net::URLRequest> request,
+      const Referrer& referrer,
+      bool is_content_initiated,
+      bool prefer_cache,
+      bool do_not_prompt_for_login,
+      scoped_ptr<DownloadSaveInfo> save_info,
+      uint32 download_id,
+      const DownloadUrlParameters::OnStartedCallback& started_callback);
+
+  // URLRequest::Delegate:
+  void OnReceivedRedirect(net::URLRequest* request,
+                          const net::RedirectInfo& redirect_info,
+                          bool* defer_redirect) override;
+  void OnResponseStarted(net::URLRequest* request) override;
+  void OnReadCompleted(net::URLRequest* request, int bytes_read) override;
+
+  void StartReading(bool is_continuation);
+  void ResponseCompleted();
+
+  void Start();
+  void ResumeReading();
+
+ private:
+  scoped_ptr<net::URLRequest> request_;
+  scoped_ptr<DownloadRequestCore> handler_;
+  base::WeakPtr<DownloadManagerImpl> manager_;
+
+  base::WeakPtrFactory<UrlDownloader> weak_ptr_factory_;
+};
+
+}  // namespace content
+
+#endif  // CONTENT_BROWSER_DOWNLOAD_URL_DOWNLOADER_H_