Add UI for cast system tray integration

ash/system/tray/system_tray.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/tray/system_tray.h"
 
 #include "ash/ash_switches.h"
 #include "ash/metrics/user_metrics_recorder.h"
 #include "ash/shelf/shelf_layout_manager.h"
 #include "ash/shell.h"
 #include "ash/shell_window_ids.h"
 #include "ash/system/audio/tray_audio.h"
 #include "ash/system/bluetooth/tray_bluetooth.h"
+#include "ash/system/cast/tray_cast.h"
 #include "ash/system/date/tray_date.h"
 #include "ash/system/status_area_widget.h"
 #include "ash/system/tray/system_tray_delegate.h"
 #include "ash/system/tray/system_tray_item.h"
 #include "ash/system/tray/tray_bubble_wrapper.h"
 #include "ash/system/tray/tray_constants.h"
 #include "ash/system/tray_accessibility.h"
 #include "ash/system/tray_update.h"
 #include "ash/system/user/login_status.h"
 #include "ash/system/user/tray_user.h"
@@ skipping 150 matching lines @@
   AddTrayItem(new TrayEnterprise(this));
   AddTrayItem(new TraySupervisedUser(this));
   AddTrayItem(new TrayIME(this));
   AddTrayItem(tray_accessibility_);
   AddTrayItem(new TrayTracing(this));
   AddTrayItem(new TrayPower(this, message_center::MessageCenter::Get()));
   AddTrayItem(new TrayNetwork(this));
   AddTrayItem(new TrayVPN(this));
   AddTrayItem(new TraySms(this));
   AddTrayItem(new TrayBluetooth(this));
+  AddTrayItem(new TrayCast(this));
   AddTrayItem(new TrayDisplay(this));
   screen_capture_tray_item_ = new ScreenCaptureTrayItem(this);
   AddTrayItem(screen_capture_tray_item_);
   screen_share_tray_item_ = new ScreenShareTrayItem(this);
   AddTrayItem(screen_share_tray_item_);
   AddTrayItem(new MultiProfileMediaTrayItem(this));
   AddTrayItem(new TrayAudioChromeOs(this));
   AddTrayItem(new TrayBrightness(this));
   AddTrayItem(new TrayCapsLock(this));
   AddTrayItem(new TrayRotationLock(this));
   AddTrayItem(new TraySettings(this));
   AddTrayItem(new TrayUpdate(this));
   AddTrayItem(tray_date_);
 #elif defined(OS_WIN)
   AddTrayItem(tray_accessibility_);
   if (media::CoreAudioUtil::IsSupported())
     AddTrayItem(new TrayAudioWin(this));
   AddTrayItem(new TrayUpdate(this));
   AddTrayItem(tray_date_);
 #elif defined(OS_LINUX)
   AddTrayItem(tray_accessibility_);
   AddTrayItem(new TrayBluetooth(this));
+  AddTrayItem(new TrayCast(this));
   AddTrayItem(new TrayUpdate(this));
   AddTrayItem(tray_date_);
 #endif
 
   SetVisible(ash::Shell::GetInstance()->system_tray_delegate()->
       GetTrayVisibilityOnStartup());
 }
 
 void SystemTray::AddTrayItem(SystemTrayItem* item) {
   items_.push_back(item);
@@ skipping 503 matching lines @@
   system_bubble_.reset();
   // When closing a system bubble with the alternate shelf layout, we need to
   // turn off the active tinting of the shelf.
   if (full_system_tray_menu_) {
     SetDrawBackgroundAsActive(false);
     full_system_tray_menu_ = false;
   }
 }
 
 }  // namespace ash