Update ui/views menus to use async

ui/views/examples/menu_example.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/views/examples/menu_example.h"
 
 #include <set>
 
 #include "base/macros.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 161 matching lines @@
 
 ExampleMenuButton::ExampleMenuButton(const base::string16& test)
     : MenuButton(test, this, true) {}
 
 ExampleMenuButton::~ExampleMenuButton() {
 }
 
 void ExampleMenuButton::OnMenuButtonClicked(MenuButton* source,
                                             const gfx::Point& point,
                                             const ui::Event* event) {
-  menu_runner_.reset(new MenuRunner(GetMenuModel(), MenuRunner::HAS_MNEMONICS));
+  menu_runner_.reset(new MenuRunner(
+      GetMenuModel(), MenuRunner::HAS_MNEMONICS | MenuRunner::ASYNC));
 
-  if (menu_runner_->RunMenuAt(source->GetWidget()->GetTopLevelWidget(),
-                              this,
-                              gfx::Rect(point, gfx::Size()),
-                              MENU_ANCHOR_TOPRIGHT,
-                              ui::MENU_SOURCE_NONE) ==
-      MenuRunner::MENU_DELETED) {
-    return;
-  }
+  menu_runner_->RunMenuAt(source->GetWidget()->GetTopLevelWidget(), this,
+                          gfx::Rect(point, gfx::Size()), MENU_ANCHOR_TOPRIGHT,
+                          ui::MENU_SOURCE_NONE);
 }
 
 ui::SimpleMenuModel* ExampleMenuButton::GetMenuModel() {
   if (!menu_model_.get())
     menu_model_.reset(new ExampleMenuModel);
   return menu_model_.get();
 }
 
 }  // namespace
 
 MenuExample::MenuExample() : ExampleBase("Menu") {
 }
 
 MenuExample::~MenuExample() {
 }
 
 void MenuExample::CreateExampleView(View* container) {
   // We add a button to open a menu.
   ExampleMenuButton* menu_button = new ExampleMenuButton(
       ASCIIToUTF16("Open a menu"));
   container->SetLayoutManager(new FillLayout);
   container->AddChildView(menu_button);
 }
 
 }  // namespace examples
 }  // namespace views