Preliminary work on resuming downloads whose connections have expired.

chrome/browser/renderer_host/resource_dispatcher_host_request_info.h

 // Copyright (c) 2010 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_RESOURCE_DISPATCHER_HOST_REQUEST_INFO_H_
 #define CHROME_BROWSER_RENDERER_HOST_RESOURCE_DISPATCHER_HOST_REQUEST_INFO_H_
 #pragma once
 
 #include <string>
 
@@ skipping 142 matching lines @@
   }
 
   // The approximate in-memory size (bytes) that we credited this request
   // as consuming in |outstanding_requests_memory_cost_map_|.
   int memory_cost() const { return memory_cost_; }
   void set_memory_cost(int cost) { memory_cost_ = cost; }
 
   int host_renderer_id() const { return host_renderer_id_; }
   int host_render_view_id() const { return host_render_view_id_; }
 
+  // Request had a network error, and a new request must be issued. Should be
+  // used only by DownloadResourceHandler::OnResponseStarted().
+  bool was_interrupted() const { return was_interrupted_; }
+  void set_was_interrupted(bool interrupted) { was_interrupted_ = interrupted; }
+
+  // How many bytes were read before this request was interrupted.
+  int64 interrupted_bytes() const { return interrupted_bytes_; }
+  void set_interrupted_bytes(int64 bytes) { interrupted_bytes_ = bytes; }
+
  private:
   friend class ResourceDispatcherHost;
 
   // Request is temporarily not handling network data. Should be used only
   // by the ResourceDispatcherHost, not the event handlers (accessors are
   // provided for consistency with the rest of the interface).
   bool is_paused() const { return is_paused_; }
   void set_is_paused(bool paused) { is_paused_ = paused; }
 
   // Whether we called OnResponseStarted for this request or not. Should be used
@@ skipping 41 matching lines @@
   base::TimeTicks last_upload_ticks_;
   bool waiting_for_upload_progress_ack_;
   int memory_cost_;
 
   // "Private" data accessible only to ResourceDispatcherHost (use the
   // accessors above for consistency).
   bool is_paused_;
   bool called_on_response_started_;
   bool has_started_reading_;
   int paused_read_bytes_;
+  bool was_interrupted_;
+  int64 interrupted_bytes_;
 
   // The following two members are specified if the request is initiated by
   // a plugin like Gears.
 
   // Contains the id of the host renderer.
   int host_renderer_id_;
   // Contains the id of the host render view.
   int host_render_view_id_;
 
   DISALLOW_COPY_AND_ASSIGN(ResourceDispatcherHostRequestInfo);
 };
 
 #endif  // CHROME_BROWSER_RENDERER_HOST_RESOURCE_DISPATCHER_HOST_REQUEST_INFO_H_