[Extensions UI Mac] Fix race condition in showing the icon surfacing bubble

chrome/browser/extensions/browser_action_test_util.h

 // 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.
 
 #ifndef CHROME_BROWSER_EXTENSIONS_BROWSER_ACTION_TEST_UTIL_H_
 #define CHROME_BROWSER_EXTENSIONS_BROWSER_ACTION_TEST_UTIL_H_
 
 #include <stddef.h>
 
 #include <string>
@@ skipping 76 matching lines @@
 
   // Tests that the button at the given |index| is displaying that it wants
   // to run.
   bool ActionButtonWantsToRun(size_t index);
 
   // Sets the current width of the browser actions container without resizing
   // the underlying controller. This is to simulate e.g. when the browser window
   // is too small for the preferred width.
   void SetWidth(int width);
 
+  // Returns true if the container is currently highlighting in preparation for
+  // showing the icon surfacing bubble.
+  bool IsHighlightingForSurfacingBubble();
+
   // Returns the ToolbarActionsBar.
   ToolbarActionsBar* GetToolbarActionsBar();
 
   // Creates and returns a BrowserActionTestUtil with an "overflow" container,
   // with this object's container as the main bar.
   scoped_ptr<BrowserActionTestUtil> CreateOverflowBar();
 
   // Returns the minimum allowed size of an extension popup.
   static gfx::Size GetMinPopupSize();
 
   // Returns the maximum allowed size of an extension popup.
   static gfx::Size GetMaxPopupSize();
 
  private:
   // A private constructor to create an overflow version.
   BrowserActionTestUtil(Browser* browser, BrowserActionTestUtil* main_bar);
 
   Browser* browser_;  // weak
 
   // Our test helper, which constructs and owns the views if we don't have a
   // real browser window, or if this is an overflow version.
   scoped_ptr<TestToolbarActionsBarHelper> test_helper_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserActionTestUtil);
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_BROWSER_ACTION_TEST_UTIL_H_