Remove code path that passes a file handle to the renderer...

chrome/common/resource_dispatcher.h

 // Copyright (c) 2006-2008 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__
 
 #include <deque>
@@ skipping 74 matching lines @@
     MessageQueue deferred_message_queue;
     bool is_deferred;
   };
   typedef base::hash_map<int, PendingRequestInfo> PendingRequestList;
 
   // 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 OnDownloadProgress(const IPC::Message& message,
-                          int request_id, int64 position, int64 size);
   void OnReceivedResponse(int request_id, const ResourceResponseHead&);
   void OnReceivedRedirect(int request_id, const GURL& new_url);
   void OnReceivedData(const IPC::Message& message,
                       int request_id,
                       base::SharedMemoryHandle data,
                       int data_len);
   void OnRequestComplete(int request_id,
                          const URLRequestStatus& status,
                          const std::string& security_info);
 
@@ skipping 17 matching lines @@
 
   // All pending requests issued to the host
   PendingRequestList pending_requests_;
 
   ScopedRunnableMethodFactory<ResourceDispatcher> method_factory_;
 
   DISALLOW_EVIL_CONSTRUCTORS(ResourceDispatcher);
 };
 
 #endif  // CHROME_COMMON_RESOURCE_DISPATCHER_H__