Cleanup MenuRunner API

ui/views/controls/combobox/combobox.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/controls/combobox/combobox.h"
 
 #include <stddef.h>
 
 #include <utility>
 
@@ skipping 939 matching lines @@
   if (arrow_button_) {
     original_state = arrow_button_->state();
     arrow_button_->SetState(Button::STATE_PRESSED);
   }
   MenuAnchorPosition anchor_position =
       style_ == STYLE_ACTION ? MENU_ANCHOR_TOPRIGHT : MENU_ANCHOR_TOPLEFT;
 
   // Allow |menu_runner_| to be set by the testing API, but if this method is
   // ever invoked recursively, ensure the old menu is closed.
   if (!menu_runner_ || menu_runner_->IsRunning()) {
-    menu_runner_.reset(new MenuRunner(
-        menu_model_.get(), MenuRunner::COMBOBOX | MenuRunner::ASYNC,
-        base::Bind(&Combobox::OnMenuClosed, base::Unretained(this),
-                   original_state)));
+    menu_runner_.reset(
+        new MenuRunner(menu_model_.get(), MenuRunner::COMBOBOX,
+                       base::Bind(&Combobox::OnMenuClosed,
+                                  base::Unretained(this), original_state)));
   }
   menu_runner_->RunMenuAt(GetWidget(), nullptr, bounds, anchor_position,
                           source_type);
 }
 
 void Combobox::OnMenuClosed(Button::ButtonState original_button_state) {
   menu_runner_.reset();
   if (arrow_button_)
     arrow_button_->SetState(original_button_state);
   closed_time_ = base::Time::Now();
@@ skipping 42 matching lines @@
   const int kMdPaddingWidth = 8;
   int arrow_pad = UseMd() ? kMdPaddingWidth
                           : PlatformStyle::kComboboxNormalArrowPadding;
   int padding = style_ == STYLE_NORMAL
                     ? arrow_pad * 2
                     : kActionLeftPadding + kActionRightPadding;
   return ArrowSize().width() + padding;
 }
 
 }  // namespace views