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

net/url_request/url_request_file_job.cc

 // Copyright (c) 2006-2009 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.
 
 // For loading files, we make use of overlapped i/o to ensure that reading from
 // the filesystem (e.g., a network filesystem) does not block the calling
 // thread.  An alternative approach would be to use a background thread or pool
 // of threads, but it seems better to leverage the operating system's ability
 // to do background file reads for us.
 //
@@ skipping 165 matching lines @@
     encoding_types->push_back(Filter::FILTER_TYPE_GZIP);
 
   return !encoding_types->empty();
 }
 
 bool URLRequestFileJob::GetMimeType(std::string* mime_type) const {
   DCHECK(request_);
   return net::GetMimeTypeFromFile(file_path_, mime_type);
 }
 
-void URLRequestFileJob::GetResponseInfo(net::HttpResponseInfo* info) {
-  DCHECK(request_);
-
-  // If we have enabled downloading the file, the requester expects to receive
-  // a file handle to the file. Since we are serving file:/// url requests we
-  // can provide such a handle if the file exists.
-  bool created;
-  if ((request_->load_flags() & net::LOAD_ENABLE_DOWNLOAD_FILE) &&
-      stream_.IsOpen()) {
-        info->response_data_file =
-            base::CreatePlatformFile(file_path_.ToWStringHack(),
-                                     base::PLATFORM_FILE_OPEN |
-                                     base::PLATFORM_FILE_READ |
-                                     base::PLATFORM_FILE_ASYNC,
-                                     &created);
-  }
-}
-
 void URLRequestFileJob::SetExtraRequestHeaders(const std::string& headers) {
   // We only care about "Range" header here.
   std::vector<net::HttpByteRange> ranges;
   if (net::HttpUtil::ParseRanges(headers, &ranges)) {
     if (ranges.size() == 1) {
       byte_range_ = ranges[0];
     } else {
       // We don't support multiple range requests in one single URL request,
       // because we need to do multipart encoding here.
       // TODO(hclam): decide whether we want to support multiple range requests.
@@ skipping 91 matching lines @@
   if (!resolved)
     return false;
 
   *location = net::FilePathToFileURL(FilePath(new_path));
   *http_status_code = 301;
   return true;
 #else
   return false;
 #endif
 }