Flesh out URLLoader's download_to_file function....

chrome/common/resource_dispatcher.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.
 
 // See http://dev.chromium.org/developers/design-documents/multi-process-resource-loading
 
 #ifndef CHROME_COMMON_RESOURCE_DISPATCHER_H__
 #define CHROME_COMMON_RESOURCE_DISPATCHER_H__
 #pragma once
 
@@ skipping 64 matching lines @@
     }
     ~PendingRequestInfo() { }
     webkit_glue::ResourceLoaderBridge::Peer* peer;
     ResourceType::Type resource_type;
     MessageQueue deferred_message_queue;
     bool is_deferred;
     GURL url;
   };
   typedef base::hash_map<int, PendingRequestInfo> PendingRequestList;
 
+  // Helper to lookup the info based on the request_id.
+  // May return NULL if the request as been canceled from the client side.
+  PendingRequestInfo* GetPendingRequestInfo(int request_id);
+
   // Message response handlers, called by the message handler for this process.
   void OnUploadProgress(
       const IPC::Message& message,
       int request_id,
       int64 position,
       int64 size);
   void OnReceivedResponse(int request_id, const ResourceResponseHead&);
   void OnReceivedCachedMetadata(int request_id, const std::vector<char>& data);
   void OnReceivedRedirect(
       const IPC::Message& message,
       int request_id,
       const GURL& new_url,
       const webkit_glue::ResourceLoaderBridge::ResponseInfo& info);
   void OnReceivedData(
       const IPC::Message& message,
       int request_id,
       base::SharedMemoryHandle data,
       int data_len);
+  void OnDownloadedData(
+      const IPC::Message& message,
+      int request_id,
+      int data_len);
   void OnRequestComplete(
       int request_id,
       const URLRequestStatus& status,
       const std::string& security_info,
       const base::Time& completion_time);
 
   // Dispatch the message to one of the message response handlers.
   void DispatchMessage(const IPC::Message& message);
 
   // Dispatch any deferred messages for the given request, provided it is not
@@ skipping 18 matching lines @@
 
   // All pending requests issued to the host
   PendingRequestList pending_requests_;
 
   ScopedRunnableMethodFactory<ResourceDispatcher> method_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ResourceDispatcher);
 };
 
 #endif  // CHROME_COMMON_RESOURCE_DISPATCHER_H__