Cater for the "double close" when clicking "Learn More" on auto-dismiss extension bubbles.

chrome/browser/ui/extensions/extension_message_bubble_browsertest.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_EXTENSIONS_EXTENSION_MESSAGE_BUBBLE_BROWSERTEST_H_
 #define CHROME_BROWSER_UI_EXTENSIONS_EXTENSION_MESSAGE_BUBBLE_BROWSERTEST_H_
 
 #include <memory>
 
 #include "base/macros.h"
@@ skipping 89 matching lines @@
   // Tests that the extension bubble will show on startup.
   void PreBubbleShowsOnStartup();
   void TestBubbleShowsOnStartup();
 
   // Tests that the developer mode warning bubble is only shown once per
   // profile.
   // Regression test for crbug.com/607099.
   void TestDevModeBubbleIsntShownTwice();
 
   // Tests that the bubble indicating an extension is controlling a user's
-  // new tab page is shown.
-  void TestControlledNewTabPageBubbleShown();
+  // new tab page is shown. When |click_learn_more| is true, the bubble is
+  // closed by clicking the Learn More link, otherwise CloseBubble() is used.
+  void TestControlledNewTabPageBubbleShown(bool click_learn_more);
 
   // Tests that the bubble indicating an extension is controlling a user's
   // home page is shown.
   void TestControlledHomeBubbleShown();
 
   // Tests that the bubble indicating an extension is controlling a user's
   // search engine is shown.
   void TestControlledSearchBubbleShown();
 
   // Tests that the bubble indicating an extension is controlling a user's
@@ skipping 23 matching lines @@
       dev_mode_bubble_override_;
 
   // The backing directory for a custom extension loaded during a test. Null if
   // no custom extension is loaded.
   std::unique_ptr<extensions::TestExtensionDir> custom_extension_dir_;
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionMessageBubbleBrowserTest);
 };
 
 #endif  // CHROME_BROWSER_UI_EXTENSIONS_EXTENSION_MESSAGE_BUBBLE_BROWSERTEST_H_