Downloads: replace BrowserThread::FILE with task scheduler.

content/browser/download/download_resource_handler.cc

 // Copyright (c) 2012 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/download/download_resource_handler.h"
 
 #include <string>
 
 #include "base/bind.h"
 #include "base/callback_helpers.h"
 #include "base/location.h"
 #include "base/logging.h"
 #include "base/strings/stringprintf.h"
 #include "content/browser/byte_stream.h"
 #include "content/browser/download/download_create_info.h"
 #include "content/browser/download/download_interrupt_reasons_impl.h"
 #include "content/browser/download/download_manager_impl.h"
 #include "content/browser/download/download_request_handle.h"
+#include "content/browser/download/download_task_runner.h"
 #include "content/browser/frame_host/frame_tree_node.h"
 #include "content/browser/loader/resource_controller.h"
 #include "content/browser/loader/resource_dispatcher_host_impl.h"
 #include "content/browser/loader/resource_request_info_impl.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/download_interrupt_reasons.h"
 #include "content/public/browser/navigation_entry.h"
 #include "content/public/browser/render_frame_host.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/common/browser_side_navigation_policy.h"
@@ skipping 34 matching lines @@
 
   DownloadManager* download_manager =
       info->request_handle->GetDownloadManager();
   if (!download_manager || !frame_host) {
     // NULL in unittests or if the page closed right after starting the
     // download.
     if (!started_cb.is_null())
       started_cb.Run(nullptr, DOWNLOAD_INTERRUPT_REASON_USER_CANCELED);
 
     if (stream)
-      BrowserThread::DeleteSoon(BrowserThread::FILE, FROM_HERE,
-                                stream.release());
+      GetDownloadTaskRunner()->DeleteSoon(FROM_HERE, stream.release());
     return;
   }
 
   info->tab_url = tab_info->tab_url;
   info->tab_referrer_url = tab_info->tab_referrer_url;
   info->site_url = frame_host->GetSiteInstance()->GetSiteURL();
 
   download_manager->StartDownload(std::move(info), std::move(stream),
                                   started_cb);
 }
@@ skipping 197 matching lines @@
                             " }",
                             request() ?
                                 request()->url().spec().c_str() :
                                 "<NULL request>",
                             info->GetChildID(),
                             info->GetRequestID(),
                             info->GetRouteID());
 }
 
 }  // namespace content