Adds a first-run balloon to the Windows notification center.

chrome/browser/status_icons/status_icon.h

 // Copyright (c) 2012 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_STATUS_ICONS_STATUS_ICON_H_
 #define CHROME_BROWSER_STATUS_ICONS_STATUS_ICON_H_
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/observer_list.h"
@@ skipping 38 matching lines @@
   // being called, otherwise, both left and right clicks will display the
   // context menu (if any).
   void AddObserver(StatusIconObserver* observer);
   void RemoveObserver(StatusIconObserver* observer);
 
   // Returns true if there are registered click observers.
   bool HasObservers() const;
 
   // Dispatches a click event to the observers.
   void DispatchClickEvent();
+#if defined(OS_WIN)
+  void DispatchBalloonClickEvent();
+#endif
 
  protected:
   // Invoked after a call to SetContextMenu() to let the platform-specific
   // subclass update the native context menu based on the new model. If NULL is
   // passed, subclass should destroy the native context menu.
   virtual void UpdatePlatformContextMenu(ui::MenuModel* model) = 0;
 
  private:
   ObserverList<StatusIconObserver> observers_;
 
   // Context menu, if any.
   scoped_ptr<ui::MenuModel> context_menu_contents_;
 
   DISALLOW_COPY_AND_ASSIGN(StatusIcon);
 };
 
 #endif  // CHROME_BROWSER_STATUS_ICONS_STATUS_ICON_H_