Add an extra argument to the DisplayBalloon method to support custom notification icons.

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>
 
+#include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/win/scoped_gdi_object.h"
 #include "chrome/browser/status_icons/status_icon.h"
 
 namespace views {
 class Menu2;
 }
 
 class StatusIconWin : public StatusIcon {
  public:
   // Constructor which provides this icon's unique ID and messaging window.
   StatusIconWin(UINT id, HWND window, UINT message);
   virtual ~StatusIconWin();
 
   // Overridden from StatusIcon:
-  virtual void SetImage(const SkBitmap& image);
-  virtual void SetPressedImage(const SkBitmap& image);
-  virtual void SetToolTip(const string16& tool_tip);
-  virtual void DisplayBalloon(const string16& title, const string16& contents);
+  virtual void SetImage(const SkBitmap& image) OVERRIDE;
+  virtual void SetPressedImage(const SkBitmap& image) OVERRIDE;
+  virtual void SetToolTip(const string16& tool_tip) OVERRIDE;
+  virtual void DisplayBalloon(const SkBitmap& icon,
+                              const string16& title,
+                              const string16& contents) OVERRIDE;
 
   UINT icon_id() const { return icon_id_; }
 
   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);
 
@@ skipping 21 matching lines @@
 
 #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_