Downloads: replace BrowserThread::FILE with task scheduler.

content/browser/download/save_file_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/save_file_resource_handler.h"
 
 #include "base/bind.h"
 #include "base/logging.h"
 #include "base/message_loop/message_loop.h"
 #include "base/strings/string_number_conversions.h"
+#include "content/browser/download/download_task_runner.h"
 #include "content/browser/download/save_file_manager.h"
 #include "content/browser/loader/resource_controller.h"
 #include "content/public/browser/browser_thread.h"
 #include "net/base/io_buffer.h"
 #include "net/url_request/redirect_info.h"
 #include "net/url_request/url_request_status.h"
 
 namespace content {
 
 SaveFileResourceHandler::SaveFileResourceHandler(
@@ skipping 26 matching lines @@
 }
 
 void SaveFileResourceHandler::OnResponseStarted(
     ResourceResponse* response,
     std::unique_ptr<ResourceController> controller) {
   // |save_manager_| consumes (deletes):
   SaveFileCreateInfo* info = new SaveFileCreateInfo(
       url_, final_url_, save_item_id_, save_package_id_, render_process_id_,
       render_frame_routing_id_, GetRequestID(), content_disposition_,
       content_length_);
-  BrowserThread::PostTask(
-      BrowserThread::FILE, FROM_HERE,
-      base::Bind(&SaveFileManager::StartSave, save_manager_, info));
+  GetDownloadTaskRunner()->PostTask(
+      FROM_HERE, base::Bind(&SaveFileManager::StartSave, save_manager_, info));
   controller->Resume();
 }
 
 void SaveFileResourceHandler::OnWillStart(
     const GURL& url,
     std::unique_ptr<ResourceController> controller) {
   if (authorization_state_ == AuthorizationState::AUTHORIZED) {
     controller->Resume();
   } else {
     controller->Cancel();
@@ skipping 15 matching lines @@
 }
 
 void SaveFileResourceHandler::OnReadCompleted(
     int bytes_read,
     std::unique_ptr<ResourceController> controller) {
   DCHECK_EQ(AuthorizationState::AUTHORIZED, authorization_state_);
   DCHECK(read_buffer_.get());
   // We are passing ownership of this buffer to the save file manager.
   scoped_refptr<net::IOBuffer> buffer;
   read_buffer_.swap(buffer);
-  BrowserThread::PostTask(
-      BrowserThread::FILE, FROM_HERE,
+  GetDownloadTaskRunner()->PostTask(
+      FROM_HERE,
       base::Bind(&SaveFileManager::UpdateSaveProgress, save_manager_,
                  save_item_id_, base::RetainedRef(buffer), bytes_read));
   controller->Resume();
 }
 
 void SaveFileResourceHandler::OnResponseCompleted(
     const net::URLRequestStatus& status,
     std::unique_ptr<ResourceController> controller) {
   if (authorization_state_ != AuthorizationState::AUTHORIZED)
     DCHECK(!status.is_success());
 
-  BrowserThread::PostTask(
-      BrowserThread::FILE, FROM_HERE,
-      base::Bind(&SaveFileManager::SaveFinished, save_manager_, save_item_id_,
-                 save_package_id_,
-                 status.is_success() && !status.is_io_pending()));
+  GetDownloadTaskRunner()->PostTask(
+      FROM_HERE, base::Bind(&SaveFileManager::SaveFinished, save_manager_,
+                            save_item_id_, save_package_id_,
+                            status.is_success() && !status.is_io_pending()));
   read_buffer_ = nullptr;
   controller->Resume();
 }
 
 void SaveFileResourceHandler::OnDataDownloaded(int bytes_downloaded) {
   NOTREACHED();
 }
 
 void SaveFileResourceHandler::set_content_length(
     const std::string& content_length) {
   base::StringToInt64(content_length, &content_length_);
 }
 
 }  // namespace content