Cleanup MenuRunner API

chrome/browser/ui/views/toolbar/toolbar_button.cc

 // Copyright 2013 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 "chrome/browser/ui/views/toolbar/toolbar_button.h"
 
 #include "base/bind.h"
 #include "base/location.h"
 #include "base/single_thread_task_runner.h"
 #include "base/threading/thread_task_runner_handle.h"
@@ skipping 196 matching lines @@
 
   // Exit if the model is null.
   if (!model_.get())
     return;
 
   // Create and run menu.
   menu_model_adapter_.reset(new views::MenuModelAdapter(
       model_.get(),
       base::Bind(&ToolbarButton::OnMenuClosed, base::Unretained(this))));
   menu_model_adapter_->set_triggerable_event_flags(triggerable_event_flags());
-  menu_runner_.reset(new views::MenuRunner(
-      menu_model_adapter_->CreateMenu(),
-      views::MenuRunner::HAS_MNEMONICS | views::MenuRunner::ASYNC));
-  ignore_result(menu_runner_->RunMenuAt(
-      GetWidget(), nullptr, gfx::Rect(menu_position, gfx::Size(0, 0)),
-      views::MENU_ANCHOR_TOPLEFT, source_type));
+  menu_runner_.reset(new views::MenuRunner(menu_model_adapter_->CreateMenu(),
+                                           views::MenuRunner::HAS_MNEMONICS));
+  menu_runner_->RunMenuAt(GetWidget(), nullptr,
+                          gfx::Rect(menu_position, gfx::Size(0, 0)),
+                          views::MENU_ANCHOR_TOPLEFT, source_type);
 }
 
 void ToolbarButton::OnMenuClosed() {
   AnimateInkDrop(views::InkDropState::DEACTIVATED, nullptr /* event */);
 
   menu_showing_ = false;
 
   // Set the state back to normal after the drop down menu is closed.
   if (state() != STATE_DISABLED)
     SetState(STATE_NORMAL);
 
   menu_runner_.reset();
   menu_model_adapter_.reset();
 }
 
 const char* ToolbarButton::GetClassName() const {
   return "ToolbarButton";
 }