Fix and refactor downloaded file handling in the loading stack

content/browser/loader/test_url_loader_client.cc

 // 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.
 
 #include "content/browser/loader/test_url_loader_client.h"
 
 #include "base/memory/ref_counted.h"
 #include "base/run_loop.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace content {
 
 TestURLLoaderClient::TestURLLoaderClient() : binding_(this) {}
 TestURLLoaderClient::~TestURLLoaderClient() {}
 
 void TestURLLoaderClient::OnReceiveResponse(
-    const ResourceResponseHead& response_head) {
+    const ResourceResponseHead& response_head,
+    mojom::DownloadedTempFilePtr downloaded_file) {
   has_received_response_ = true;
   response_head_ = response_head;
   if (quit_closure_for_on_receive_response_)
     quit_closure_for_on_receive_response_.Run();
 }
 
 void TestURLLoaderClient::OnReceiveRedirect(
     const net::RedirectInfo& redirect_info,
     const ResourceResponseHead& response_head) {
   EXPECT_FALSE(response_body_.is_valid());
@@ skipping 81 matching lines @@
 void TestURLLoaderClient::RunUntilComplete() {
   if (has_received_completion_)
     return;
   base::RunLoop run_loop;
   quit_closure_for_on_complete_ = run_loop.QuitClosure();
   run_loop.Run();
   quit_closure_for_on_complete_.Reset();
 }
 
 }  // namespace content