Move DownloadResourceHandler to content.

chrome/browser/renderer_host/download_resource_handler.h

-// Copyright (c) 2011 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 CHROME_BROWSER_RENDERER_HOST_DOWNLOAD_RESOURCE_HANDLER_H_
-#define CHROME_BROWSER_RENDERER_HOST_DOWNLOAD_RESOURCE_HANDLER_H_
-#pragma once
-
-#include <string>
-
-#include "base/memory/scoped_ptr.h"
-#include "base/timer.h"
-#include "content/browser/download/download_file.h"
-#include "content/browser/renderer_host/global_request_id.h"
-#include "content/browser/renderer_host/resource_handler.h"
-
-class DownloadFileManager;
-class ResourceDispatcherHost;
-struct DownloadBuffer;
-
-namespace net {
-class URLRequest;
-}  // namespace net
-
-// Forwards data to the download thread.
-class DownloadResourceHandler : public ResourceHandler {
- public:
-  DownloadResourceHandler(ResourceDispatcherHost* rdh,
-                          int render_process_host_id,
-                          int render_view_id,
-                          int request_id,
-                          const GURL& url,
-                          DownloadFileManager* download_file_manager,
-                          net::URLRequest* request,
-                          bool save_as,
-                          const DownloadSaveInfo& save_info);
-
-  virtual bool OnUploadProgress(int request_id, uint64 position, uint64 size);
-
-  // Not needed, as this event handler ought to be the final resource.
-  virtual bool OnRequestRedirected(int request_id, const GURL& url,
-                                   ResourceResponse* response, bool* defer);
-
-  // Send the download creation information to the download thread.
-  virtual bool OnResponseStarted(int request_id, ResourceResponse* response);
-
-  // Pass-through implementation.
-  virtual bool OnWillStart(int request_id, const GURL& url, bool* defer);
-
-  // Create a new buffer, which will be handed to the download thread for file
-  // writing and deletion.
-  virtual bool OnWillRead(int request_id, net::IOBuffer** buf, int* buf_size,
-                          int min_size);
-
-  virtual bool OnReadCompleted(int request_id, int* bytes_read);
-
-  virtual bool OnResponseCompleted(int request_id,
-                                   const net::URLRequestStatus& status,
-                                   const std::string& security_info);
-  virtual void OnRequestClosed();
-
-  // If the content-length header is not present (or contains something other
-  // than numbers), the incoming content_length is -1 (unknown size).
-  // Set the content length to 0 to indicate unknown size to DownloadManager.
-  void set_content_length(const int64& content_length);
-
-  void set_content_disposition(const std::string& content_disposition);
-
-  void CheckWriteProgress();
-
-  std::string DebugString() const;
-
- private:
-  virtual ~DownloadResourceHandler();
-
-  void StartPauseTimer();
-
-  int download_id_;
-  GlobalRequestID global_id_;
-  int render_view_id_;
-  scoped_refptr<net::IOBuffer> read_buffer_;
-  std::string content_disposition_;
-  int64 content_length_;
-  DownloadFileManager* download_file_manager_;
-  net::URLRequest* request_;
-  bool save_as_;  // Request was initiated via "Save As" by the user.
-  DownloadSaveInfo save_info_;
-  scoped_ptr<DownloadBuffer> buffer_;
-  ResourceDispatcherHost* rdh_;
-  bool is_paused_;
-  base::OneShotTimer<DownloadResourceHandler> pause_timer_;
-  base::TimeTicks download_start_time_;  // used to collect stats.
-  static const int kReadBufSize = 32768;  // bytes
-  static const size_t kLoadsToWrite = 100;  // number of data buffers queued
-  static const int kThrottleTimeMs = 200;  // milliseconds
-
-  DISALLOW_COPY_AND_ASSIGN(DownloadResourceHandler);
-};
-
-#endif  // CHROME_BROWSER_RENDERER_HOST_DOWNLOAD_RESOURCE_HANDLER_H_