Implement notifications for the DisplayBalloon method on Linux and Mac.

chrome/browser/ui/gtk/status_icons/status_icon_gtk.h

Index: chrome/browser/ui/gtk/status_icons/status_icon_gtk.h
diff --git a/chrome/browser/ui/gtk/status_icons/status_icon_gtk.h b/chrome/browser/ui/gtk/status_icons/status_icon_gtk.h
index 4985d1d78520562af8c252cce86a2593180e0225..d0a9050c0caed6fcce1622d719140bde2d13504f 100644
--- a/chrome/browser/ui/gtk/status_icons/status_icon_gtk.h
+++ b/chrome/browser/ui/gtk/status_icons/status_icon_gtk.h
@@ -9,13 +9,13 @@
 #include <gtk/gtk.h>
 
 #include "base/compiler_specific.h"
-#include "chrome/browser/status_icons/status_icon.h"
+#include "chrome/browser/status_icons/desktop_notification_balloon_impl.h"
 #include "ui/base/gtk/gtk_signal.h"
 
 class MenuGtk;
 class SkBitmap;
 
-class StatusIconGtk : public StatusIcon {
+class StatusIconGtk : public DesktopNotificationBalloonImpl {
  public:
   StatusIconGtk();
   virtual ~StatusIconGtk();
@@ -24,9 +24,6 @@ class StatusIconGtk : public StatusIcon {
   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);
 
   // Exposed for testing.
   CHROMEGTK_CALLBACK_0(StatusIconGtk, void, OnClick);