Remove multiple inheritance from input_method_menu_button.h.

chrome/browser/chromeos/login/keyboard_switch_menu.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/keyboard_switch_menu.h"
 
 #include "base/i18n/rtl.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/chromeos/cros/cros_library.h"
 #include "chrome/browser/chromeos/cros/keyboard_library.h"
 #include "chrome/browser/chromeos/input_method/input_method_util.h"
 #include "chrome/browser/chromeos/status/status_area_host.h"
 #include "grit/generated_resources.h"
 #include "ui/base/l10n/l10n_util.h"
+#include "views/controls/button/menu_button.h"
 #include "views/widget/widget_gtk.h"
 
 namespace chromeos {
 
 KeyboardSwitchMenu::KeyboardSwitchMenu()
     : InputMethodMenu(NULL /* pref_service */,
                       StatusAreaHost::kLoginMode,
                       true /* for_out_of_box_experience_dialog */) {
 }
 
@@ skipping 34 matching lines @@
              "that matches the hardware keyboard layout";
   KeyboardLibrary *library = CrosLibrary::Get()->GetKeyboardLibrary();
   const std::string keyboard_layout_id =
       library->GetHardwareKeyboardLayoutName();
   const std::string language_code =
       input_method::GetLanguageCodeFromInputMethodId(keyboard_layout_id);
   return input_method::GetLanguageDisplayNameFromCode(language_code);
 }
 
 }  // namespace chromeos