Cleanup: remove NotifyAccessibilityEvent from views::Widget.

ash/system/chromeos/network/tray_network.cc

 // 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.
 
 #include "ash/system/chromeos/network/tray_network.h"
 
 #include "ash/ash_switches.h"
 #include "ash/shell.h"
 #include "ash/system/chromeos/network/network_icon_animation.h"
 #include "ash/system/chromeos/network/network_list_detailed_view.h"
@@ skipping 159 matching lines @@
  private:
   // Updates connection status and notifies accessibility event when necessary.
   void UpdateConnectionStatus(const string16& network_name, bool connected) {
     string16 new_connection_status_string;
     if (connected) {
       new_connection_status_string = l10n_util::GetStringFUTF16(
           IDS_ASH_STATUS_TRAY_NETWORK_CONNECTED, network_name);
     }
     if (new_connection_status_string != connection_status_string_) {
       connection_status_string_ = new_connection_status_string;
-      if(!connection_status_string_.empty()) {
-        GetWidget()->NotifyAccessibilityEvent(
-            this, ui::AccessibilityTypes::EVENT_ALERT, true);
-      }
+      if(!connection_status_string_.empty())
+        NotifyAccessibilityEvent(ui::AccessibilityTypes::EVENT_ALERT, true);
     }
   }
 
   void UpdateIcon(bool tray_icon_visible, const gfx::ImageSkia& image) {
     image_view_->SetImage(image);
     SetVisible(tray_icon_visible);
     SchedulePaint();
   }
 
   TrayNetwork* network_tray_;
@@ skipping 427 matching lines @@
 
 void TrayNetwork::LinkClicked(MessageType message_type, int link_id) {
   tray::NetworkMessages::MessageMap::const_iterator iter =
       messages()->messages().find(message_type);
   if (iter != messages()->messages().end() && iter->second.delegate)
     iter->second.delegate->NotificationLinkClicked(message_type, link_id);
 }
 
 }  // namespace internal
 }  // namespace ash