Fixs bug resulting in double event delivery in mus

ui/views/controls/combobox/combobox_unittest.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 "ui/views/controls/combobox/combobox.h"
 
 #include <set>
 
 #include "base/macros.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 194 matching lines @@
     combobox_ = new TestCombobox(model_.get(), style);
     test_api_.reset(new ComboboxTestApi(combobox_));
     test_api_->InstallTestMenuRunner(&menu_show_count_);
     combobox_->set_id(1);
 
     widget_ = new Widget;
     Widget::InitParams params =
         CreateParams(Widget::InitParams::TYPE_WINDOW_FRAMELESS);
     params.bounds = gfx::Rect(200, 200, 200, 200);
     widget_->Init(params);
+    // This test sends events that in mus are normally routed to ime. Disable
+    // talking to the server so the test doesn't have to wait for the ack.
+    DisableMusInputMethod(widget_);
     View* container = new View();
     widget_->SetContentsView(container);
     container->AddChildView(combobox_);
     widget_->Show();
 
     combobox_->RequestFocus();
     combobox_->SizeToPreferredSize();
 
     event_generator_ =
         base::MakeUnique<ui::test::EventGenerator>(widget_->GetNativeWindow());
@@ skipping 691 matching lines @@
   EXPECT_EQ(ui::MenuModel::TYPE_COMMAND, menu_model->GetTypeAt(0));
   EXPECT_EQ(ui::MenuModel::TYPE_COMMAND, menu_model->GetTypeAt(1));
 
   EXPECT_EQ(ASCIIToUTF16("PEANUT BUTTER"), menu_model->GetLabelAt(0));
   EXPECT_EQ(ASCIIToUTF16("JELLY"), menu_model->GetLabelAt(1));
   EXPECT_FALSE(menu_model->IsVisibleAt(0));
   EXPECT_TRUE(menu_model->IsVisibleAt(1));
 }
 
 }  // namespace views