Implementing custom notification icons for the DisplayBalloon method on Windows.

chrome/browser/ui/views/status_icons/status_icon_win.h

 // Copyright (c) 2011 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_VIEWS_STATUS_ICONS_STATUS_ICON_WIN_H_
 #define CHROME_BROWSER_UI_VIEWS_STATUS_ICONS_STATUS_ICON_WIN_H_
 #pragma once
 
 #include <windows.h>
 #include <shellapi.h>
@@ skipping 26 matching lines @@
   UINT message_id() const { return message_id_; }
 
   // Handles a click event from the user - if |left_button_click| is true and
   // there is a registered observer, passes the click event to the observer,
   // otherwise displays the context menu if there is one.
   void HandleClickEvent(int x, int y, bool left_button_click);
 
   // Re-creates the status tray icon now after the taskbar has been created.
   void ResetIcon();
 
+  // Forces to hide the notification balloon if any.
+  void HideBalloon();

[Andrew T Wilson (Slow), 2011/10/26 01:05:01]

Not sure that this should be public?

[Leandro Graciá Gil, 2011/10/26 12:13:26]

Addressed in the next patch.

On 2011/10/26 01:05:01, Andrew T Wilson wrote:

+
  protected:
   // Overridden from StatusIcon.
   virtual void UpdatePlatformContextMenu(ui::MenuModel* menu);
 
  private:
   void InitIconData(NOTIFYICONDATA* icon_data);
 
   // The unique ID corresponding to this icon.
   UINT icon_id_;
 
   // Window used for processing messages from this icon.
   HWND window_;
 
   // The message identifier used for status icon messages.
   UINT message_id_;
 
   // The currently-displayed icon for the window.
   base::win::ScopedHICON icon_;
 
+  // The currently-displayed icon for the notification balloon.
+  base::win::ScopedHICON balloon_icon_;
+
 #if !defined(USE_AURA)
   // Context menu associated with this icon (if any).
   scoped_ptr<views::Menu2> context_menu_;
 #endif
 
   DISALLOW_COPY_AND_ASSIGN(StatusIconWin);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_STATUS_ICONS_STATUS_ICON_WIN_H_