[Extensions] Fix a bug in the startup pages override bubble

chrome/browser/ui/toolbar/toolbar_actions_bar_unittest.h

 // Copyright 2015 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 CHROME_BROWSER_UI_TOOLBAR_TOOLBAR_ACTIONS_BAR_UNITTEST_H_
 #define CHROME_BROWSER_UI_TOOLBAR_TOOLBAR_ACTIONS_BAR_UNITTEST_H_
 
 #include <stddef.h>
 
 #include <memory>
 
 #include "base/macros.h"
 #include "chrome/browser/extensions/browser_action_test_util.h"
 #include "chrome/browser/extensions/extension_action_test_util.h"
 #include "chrome/test/base/browser_with_test_window_test.h"
 #include "ui/base/material_design/material_design_controller.h"
 
 class ExtensionAction;
+class ScopedTestingLocalState;
 class ToolbarActionsBar;
 
 namespace content {
 class WebContents;
 }
 
 namespace extensions {
 class Extension;
 }
 
@@ skipping 63 matching lines @@
   // A BrowserActionTestUtil object constructed with the associated
   // ToolbarActionsBar.
   std::unique_ptr<BrowserActionTestUtil> browser_action_test_util_;
 
   // The overflow container's BrowserActionTestUtil.
   std::unique_ptr<BrowserActionTestUtil> overflow_browser_action_test_util_;
 
   std::unique_ptr<ui::test::MaterialDesignControllerTestAPI>
       material_design_state_;
 
+  // Local state for the browser process.
+  std::unique_ptr<ScopedTestingLocalState> local_state_;
+
   DISALLOW_COPY_AND_ASSIGN(ToolbarActionsBarUnitTest);
 };
 
 #endif  // CHROME_BROWSER_UI_TOOLBAR_TOOLBAR_ACTIONS_BAR_UNITTEST_H_