components: Remove use of MessageLoopProxy and deprecated MessageLoop APIs

components/update_client/background_downloader_win.cc

 // Copyright 2014 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 "components/update_client/background_downloader_win.h"
 
 #include <atlbase.h>
 #include <atlcom.h>
 
 #include <stdint.h>
 #include <functional>
 #include <iomanip>
 #include <limits>
 #include <vector>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/files/file_util.h"
-#include "base/message_loop/message_loop_proxy.h"
 #include "base/single_thread_task_runner.h"
 #include "base/strings/sys_string_conversions.h"
+#include "base/thread_task_runner_handle.h"
 #include "base/win/scoped_co_mem.h"
 #include "components/update_client/utils.h"
 #include "ui/base/win/atl_module.h"
 #include "url/gurl.h"
 
 using base::win::ScopedCoMem;
 using base::win::ScopedComPtr;
 
 // The class BackgroundDownloader in this module is an adapter between
 // the CrxDownloader interface and the BITS service interfaces.
@@ skipping 354 matching lines @@
   return S_OK;
 }
 
 }  // namespace
 
 BackgroundDownloader::BackgroundDownloader(
     scoped_ptr<CrxDownloader> successor,
     net::URLRequestContextGetter* context_getter,
     scoped_refptr<base::SingleThreadTaskRunner> task_runner)
     : CrxDownloader(successor.Pass()),
-      main_task_runner_(base::MessageLoopProxy::current()),
+      main_task_runner_(base::ThreadTaskRunnerHandle::Get()),
       context_getter_(context_getter),
       task_runner_(task_runner),
       is_completed_(false) {
 }
 
 BackgroundDownloader::~BackgroundDownloader() {
   DCHECK(thread_checker_.CalledOnValidThread());
 
   // The following objects have thread affinity and can't be destroyed on the
   // main thread. The resources managed by these objects are acquired at the
@@ skipping 346 matching lines @@
   // must match as a job only contains one file.
   DCHECK(progress.Completed);
   DCHECK_EQ(progress.BytesTotal, progress.BytesTransferred);
 
   response_ = base::FilePath(local_name);
 
   return S_OK;
 }
 
 }  // namespace update_client