Add the button style for combobox

ui/views/test/menu_runner_test_api.h

+// 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.
+
+#ifndef UI_VIEWS_TEST_MENU_RUNNER_TEST_API_H_
+#define UI_VIEWS_TEST_MENU_RUNNER_TEST_API_H_
+
+#include "base/basictypes.h"
+#include "base/memory/scoped_ptr.h"
+
+namespace views {
+
+class MenuRunner;
+class MenuRunnerHandler;
+
+namespace test {
+
+// A wrapper of MenuRunner to use testing methods of MenuRunner.
+class MenuRunnerTestAPI {
+ public:
+  explicit MenuRunnerTestAPI(MenuRunner* menu_runner);
+  ~MenuRunnerTestAPI();
+
+  // Sets the menu runner handler.
+  void SetMenuRunnerHandler(scoped_ptr<MenuRunnerHandler> menu_runner_handler);
+
+ private:
+  MenuRunner* menu_runner_;
+
+  DISALLOW_COPY_AND_ASSIGN(MenuRunnerTestAPI);
+};
+
+}  // namespace test
+
+}  // namespace views
+
+#endif  // UI_VIEWS_TEST_MENU_RUNNER_TEST_API_H_