MenuButton: support Mac look & feel

chrome/browser/ui/views/translate/translate_bubble_view.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/translate/translate_bubble_view.h"
 
 #include <stddef.h>
 #include <algorithm>
 #include <string>
 #include <utility>
@@ skipping 398 matching lines @@
       static_cast<size_t>(DenialComboboxIndex::MENU_SIZE));
   items[static_cast<size_t>(DenialComboboxIndex::DONT_TRANSLATE)] =
       l10n_util::GetStringUTF16(IDS_TRANSLATE_BUBBLE_DENY);
   items[static_cast<size_t>(DenialComboboxIndex::NEVER_TRANSLATE_LANGUAGE)] =
       l10n_util::GetStringFUTF16(IDS_TRANSLATE_BUBBLE_NEVER_TRANSLATE_LANG,
                                  original_language_name);
   items[static_cast<size_t>(DenialComboboxIndex::NEVER_TRANSLATE_SITE)] =
       l10n_util::GetStringUTF16(IDS_TRANSLATE_BUBBLE_NEVER_TRANSLATE_SITE);
 
   denial_combobox_model_.reset(new ui::SimpleComboboxModel(items));
-  denial_combobox_ = new views::Combobox(denial_combobox_model_.get());
+  denial_combobox_ = new views::Combobox(denial_combobox_model_.get(),
+                                         views::Combobox::STYLE_ACTION);

[tapted, 2016/05/09 08:01:35]

heads-up: this will need a rebase

   denial_combobox_->set_id(COMBOBOX_ID_DENIAL);
   denial_combobox_->set_listener(this);
-  denial_combobox_->SetStyle(views::Combobox::STYLE_ACTION);
 
   views::View* view = new views::View();
   views::GridLayout* layout = new views::GridLayout(view);
   view->SetLayoutManager(layout);
 
   using views::GridLayout;
 
   enum {
     COLUMN_SET_ID_MESSAGE,
     COLUMN_SET_ID_CONTENT,
@@ skipping 307 matching lines @@
   base::string16 label;
   if (model_->IsPageTranslatedInCurrentLanguages())
     label = l10n_util::GetStringUTF16(IDS_DONE);
   else
     label = l10n_util::GetStringUTF16(IDS_TRANSLATE_BUBBLE_ACCEPT);
   advanced_done_button_->SetText(label);
   advanced_done_button_->SizeToPreferredSize();
   if (advanced_view_)
     advanced_view_->Layout();
 }