chromeos: Refactor the code for showing the network UI.

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/metrics/user_metrics_recorder.h"
 #include "ash/shell.h"
 #include "ash/system/chromeos/network/network_state_list_detailed_view.h"
 #include "ash/system/chromeos/network/tray_network_state_observer.h"
 #include "ash/system/tray/system_tray.h"
 #include "ash/system/tray/system_tray_delegate.h"
 #include "ash/system/tray/system_tray_notifier.h"
 #include "ash/system/tray/tray_constants.h"
 #include "ash/system/tray/tray_item_more.h"
 #include "ash/system/tray/tray_item_view.h"
 #include "ash/system/tray/tray_utils.h"
 #include "base/command_line.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chromeos/network/network_state.h"
 #include "chromeos/network/network_state_handler.h"
 #include "grit/ash_resources.h"
 #include "grit/ash_strings.h"
 #include "grit/ui_chromeos_strings.h"
 #include "third_party/cros_system_api/dbus/service_constants.h"
 #include "ui/accessibility/ax_view_state.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/base/resource/resource_bundle.h"
+#include "ui/chromeos/network/network_icon.h"
 #include "ui/chromeos/network/network_icon_animation.h"
 #include "ui/views/controls/image_view.h"
 #include "ui/views/controls/link.h"
 #include "ui/views/controls/link_listener.h"
 #include "ui/views/layout/box_layout.h"
 #include "ui/views/widget/widget.h"
 
 using chromeos::NetworkHandler;
 using chromeos::NetworkState;
 using chromeos::NetworkStateHandler;
@@ skipping 328 matching lines @@
       detailed_->ManagerChanged();
   }
 }
 
 void TrayNetwork::NetworkServiceChanged(const chromeos::NetworkState* network) {
   if (detailed_)
     detailed_->NetworkServiceChanged(network);
 }
 
 }  // namespace ash