Cleanup MenuRunner API

mash/browser/browser.cc

 // Copyright 2016 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 "mash/browser/browser.h"
 
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
 #include "base/memory/weak_ptr.h"
 #include "base/message_loop/message_loop.h"
@@ skipping 420 matching lines @@
     gfx::Rect local = GetLocalBounds();
     gfx::Point menu_position(local.origin());
     menu_position.Offset(0, local.height() - 1);
     View::ConvertPointToScreen(this, &menu_position);
 
     model_ = model_provider_->CreateMenuModel(type_);
     menu_model_adapter_.reset(new views::MenuModelAdapter(
         model_.get(),
         base::Bind(&NavButton::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 OnMenuClosed() {
     SetMouseHandler(nullptr);
     model_.reset();
     menu_runner_.reset();
     menu_model_adapter_.reset();
   }
 
   Type type_;
@@ skipping 455 matching lines @@
   AddWindow(window);
 }
 
 void Browser::Create(const service_manager::Identity& remote_identity,
                      mojom::LaunchableRequest request) {
   bindings_.AddBinding(this, std::move(request));
 }
 
 }  // namespace browser
 }  // namespace mash