Use associated interface on DownloadedTempFile

content/common/url_loader.mojom

 // Copyright 2016 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.
 
 module content.mojom;
 
 [Native]
 struct URLRequest;
 
 [Native]
@@ skipping 17 matching lines @@
 // the lifetime of temporary files used for download_to_file resource loading.
 // When the message pipe for this interface is closed, the browser process will
 // clean up the corresponding temporary file.
 interface DownloadedTempFile {
 };
 
 
 interface URLLoaderClient {
   // Called when the response head is received. |downloaded_file| is non-null in
   // the 'download_to_file' case.
-  OnReceiveResponse(URLResponseHead head, DownloadedTempFile? downloaded_file);
+  OnReceiveResponse(URLResponseHead head,
+                    associated DownloadedTempFile? downloaded_file);
 
   // Called when the request has been redirected. The receiver is expected to
   // call FollowRedirect or cancel the request.
   OnReceiveRedirect(URLRequestRedirectInfo redirect_info, URLResponseHead head);
 
   // Called when some data from a resource request has been downloaded to the
   // file. This is only called in the 'download_to_file' case and replaces
   // OnStartLoadingResponseBody in the call sequence in that case.
   // TODO(yhirano): Remove |encoded_length| and use OnTransferSizeUpdated
   // instead.
@@ skipping 15 matching lines @@
 
   // Called when the loader starts loading response body. This is called after
   // OnReceiveResponse is called.
   OnStartLoadingResponseBody(handle<data_pipe_consumer> body);
 
   // Called when the loading completes. No notification will be dispatched for
   // this client after this message arrives.
   OnComplete(URLLoaderStatus completion_status);
 };