Remove ImageSkia::empty and ImageSkia::extractSubset

chrome/browser/chromeos/status/network_menu.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 "chrome/browser/chromeos/status/network_menu.h"
 
 #include <algorithm>
 
 #include "ash/shell.h"
 #include "ash/shell_delegate.h"
@@ skipping 359 matching lines @@
 bool NetworkMenuModel::IsItemCheckedAt(int index) const {
   // All ui::MenuModel::TYPE_CHECK menu items are checked.
   return true;
 }
 
 int NetworkMenuModel::GetGroupIdAt(int index) const {
   return 0;
 }
 
 bool NetworkMenuModel::GetIconAt(int index, gfx::ImageSkia* icon) {
-  if (!menu_items_[index].icon.empty()) {
+  if (!menu_items_[index].icon.isNull()) {
     *icon = menu_items_[index].icon;
     return true;
   }
   return false;
 }
 
 ui::ButtonMenuItemModel* NetworkMenuModel::GetButtonMenuItemAt(
     int index) const {
   return NULL;
 }
@@ skipping 711 matching lines @@
 
 void NetworkMenu::ShowOtherWifi() {
   NetworkConfigView::ShowForType(TYPE_WIFI, delegate_->GetNativeWindow());
 }
 
 void NetworkMenu::ShowOtherCellular() {
   ChooseMobileNetworkDialog::ShowDialog(delegate_->GetNativeWindow());
 }
 
 }  // namespace chromeos