Default IDR_MENU_DROPARROW is unsuitable for us because it is too opaque....

chrome/browser/chromeos/login/new_user_view.cc

 // Copyright (c) 2010 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/chromeos/login/new_user_view.h"
 
 #include <signal.h>
 #include <sys/types.h>
 
 #include <algorithm>
 #include <vector>
 
 #include "app/keyboard_codes.h"
 #include "app/l10n_util.h"
 #include "app/resource_bundle.h"
 #include "base/callback.h"
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/message_loop.h"
 #include "base/process_util.h"
 #include "base/string_util.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/chromeos/cros/cros_library.h"
 #include "chrome/browser/chromeos/login/helper.h"
 #include "chrome/browser/chromeos/login/rounded_rect_painter.h"
+#include "grit/app_resources.h"
 #include "grit/generated_resources.h"
 #include "views/controls/button/native_button.h"
 #include "views/controls/label.h"
 #include "views/controls/throbber.h"
 #include "views/widget/widget_gtk.h"
 
 using views::Label;
 using views::Textfield;
 using views::View;
 using views::WidgetGtk;
@@ skipping 92 matching lines @@
   if (need_create_account_) {
     InitLink(&create_account_link_);
   }
   if (need_browse_without_signin_) {
     InitLink(&browse_without_signin_link_);
   }
 
   language_switch_menu_.InitLanguageMenu();
   languages_menubutton_ = new views::MenuButton(
       NULL, std::wstring(), &language_switch_menu_, true);
+  languages_menubutton_->set_menu_marker(
+      ResourceBundle::GetSharedInstance().GetBitmapNamed(
+          IDR_MENU_DROPARROW_SHARP));
   languages_menubutton_->SetFocusable(true);
   AddChildView(languages_menubutton_);
 
   AddAccelerator(accel_focus_user_);
   AddAccelerator(accel_focus_pass_);
 
   UpdateLocalizedStrings();
   RequestFocus();
 
   // Controller to handle events from textfields
@@ skipping 276 matching lines @@
   }
 }
 
 void NewUserView::InitLink(views::Link** link) {
   *link = new views::Link(std::wstring());
   (*link)->SetController(this);
   AddChildView(*link);
 }
 
 }  // namespace chromeos