ui: Use base::MessageLoop.

ui/base/models/simple_menu_model.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/base/models/simple_menu_model.h"
 
 #include "base/bind.h"
 #include "base/message_loop.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/gfx/image/image.h"
@@ skipping 342 matching lines @@
 
 void SimpleMenuModel::MenuWillShow() {
   if (delegate_)
     delegate_->MenuWillShow(this);
 }
 
 void SimpleMenuModel::MenuClosed() {
   // Due to how menus work on the different platforms, ActivatedAt will be
   // called after this.  It's more convenient for the delegate to be called
   // afterwards though, so post a task.
-  MessageLoop::current()->PostTask(
+  base::MessageLoop::current()->PostTask(
       FROM_HERE,
       base::Bind(&SimpleMenuModel::OnMenuClosed, method_factory_.GetWeakPtr()));
 }
 
 void SimpleMenuModel::SetMenuModelDelegate(
       ui::MenuModelDelegate* menu_model_delegate) {
   menu_model_delegate_ = menu_model_delegate;
 }
 
 MenuModelDelegate* SimpleMenuModel::GetMenuModelDelegate() const {
@@ skipping 28 matching lines @@
 #ifndef NDEBUG
   if (item.type == TYPE_SEPARATOR) {
     DCHECK_EQ(item.command_id, kSeparatorId);
   } else {
     DCHECK_GE(item.command_id, 0);
   }
 #endif  // NDEBUG
 }
 
 }  // namespace ui