Replace MessageLoop::current()->task_runner() with ThreadTaskRunnerHandle::Get().

ui/shell_dialogs/select_file_dialog_win.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 "ui/shell_dialogs/select_file_dialog_win.h"
 
 #include <shlobj.h>
 #include <stddef.h>
 
 #include <algorithm>
 #include <set>
 #include <tuple>
 
 #include "base/bind.h"
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
 #include "base/i18n/case_conversion.h"
+#include "base/logging.h"
 #include "base/macros.h"
 #include "base/message_loop/message_loop.h"
 #include "base/single_thread_task_runner.h"
 #include "base/threading/thread.h"
+#include "base/threading/thread_task_runner_handle.h"
 #include "base/win/registry.h"
 #include "base/win/scoped_comptr.h"
 #include "base/win/shortcut.h"
 #include "ui/aura/window.h"
 #include "ui/aura/window_event_dispatcher.h"
 #include "ui/aura/window_tree_host.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/base/win/open_file_name_win.h"
 #include "ui/gfx/native_widget_types.h"
 #include "ui/shell_dialogs/base_shell_dialog_win.h"
@@ skipping 162 matching lines @@
                         const std::wstring& default_extension,
                         RunState run_state,
                         HWND owner,
                         void* params)
         : type(type),
           title(title),
           default_path(default_path),
           file_type_index(file_type_index),
           default_extension(default_extension),
           run_state(run_state),
-          ui_task_runner(base::MessageLoopForUI::current()->task_runner()),
+          ui_task_runner(base::ThreadTaskRunnerHandle::Get()),
           owner(owner),
           params(params) {
+      DCHECK(base::MessageLoopForUI::IsCurrent());
       if (file_types)
         this->file_types = *file_types;
     }
     SelectFileDialog::Type type;
     std::wstring title;
     base::FilePath default_path;
     FileTypeInfo file_types;
     int file_type_index;
     std::wstring default_extension;
     RunState run_state;
@@ skipping 490 matching lines @@
 
 SelectFileDialog* CreateSelectFileDialog(SelectFileDialog::Listener* listener,
                                          SelectFilePolicy* policy) {
   return CreateWinSelectFileDialog(listener,
                                    policy,
                                    base::Bind(&CallBuiltinGetOpenFileName),
                                    base::Bind(&CallBuiltinGetSaveFileName));
 }
 
 }  // namespace ui