Support dragging a virtual file out of the browser.

chrome/browser/renderer_host/download_throttling_resource_handler.cc

 // 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.
 
 #include "chrome/browser/renderer_host/download_throttling_resource_handler.h"
 
 #include "base/logging.h"
 #include "chrome/browser/renderer_host/download_resource_handler.h"
 #include "chrome/browser/renderer_host/resource_dispatcher_host.h"
 #include "net/base/io_buffer.h"
@@ skipping 112 matching lines @@
   NOTREACHED();
   return true;
 }
 
 void DownloadThrottlingResourceHandler::CancelDownload() {
   host_->CancelRequest(render_process_host_id_, request_id_, false);
 }
 
 void DownloadThrottlingResourceHandler::ContinueDownload() {
   DCHECK(!download_handler_.get());
+  FilePath save_file_path;
   download_handler_ =
       new DownloadResourceHandler(host_,
                                   render_process_host_id_,
                                   render_view_id_,
                                   request_id_,
                                   url_,
                                   host_->download_file_manager(),
                                   request_,
-                                  false);
+                                  false,
+                                  save_file_path);
   if (response_.get())
     download_handler_->OnResponseStarted(request_id_, response_.get());
 
   if (tmp_buffer_length_)
     CopyTmpBufferToDownloadHandler();
 
   // And let the request continue.
   host_->PauseRequest(render_process_host_id_, request_id_, false);
 }
 
 int DownloadThrottlingResourceHandler::GetRequestId() {
   return request_id_;
 }
 
 void DownloadThrottlingResourceHandler::CopyTmpBufferToDownloadHandler() {
   // Copy over the tmp buffer.
   net::IOBuffer* buffer;
   int buf_size;
   if (download_handler_->OnWillRead(request_id_, &buffer, &buf_size,
                                     tmp_buffer_length_)) {
     CHECK(buf_size >= tmp_buffer_length_);
     memcpy(buffer->data(), tmp_buffer_->data(), tmp_buffer_length_);
     download_handler_->OnReadCompleted(request_id_, &tmp_buffer_length_);
   }
   tmp_buffer_length_ = 0;
   tmp_buffer_ = NULL;
 }