Correctly remove file browser notifications from Ash notification tray.

chrome/browser/status_icons/desktop_notification_balloon.cc

Index: chrome/browser/status_icons/desktop_notification_balloon.cc
diff --git a/chrome/browser/status_icons/desktop_notification_balloon.cc b/chrome/browser/status_icons/desktop_notification_balloon.cc
index fb22c9157e72c27505483b7ea685cf5f39a4d754..8619c9a414f9cba45702ed455791d786070a10a4 100644
--- a/chrome/browser/status_icons/desktop_notification_balloon.cc
+++ b/chrome/browser/status_icons/desktop_notification_balloon.cc
@@ -83,6 +83,6 @@ void DesktopNotificationBalloon::DisplayBalloon(const SkBitmap& icon,
     profile = ProfileManager::GetLastUsedProfile();
   }
   notification_id_ = DesktopNotificationService::AddIconNotification(
-      GURL(), title, contents, gfx::ImageSkia(icon),
+      GURL(), title, contents, gfx::ImageSkia(icon), string16(),
       new DummyNotificationDelegate(base::IntToString(id_count_++)), profile);
 }