mash: Move SystemTrayDelegate and dependencies to //ash/common

ash/system/chromeos/power/tray_power.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/power/tray_power.h"
 
 #include <utility>
 
 #include "ash/ash_switches.h"
 #include "ash/common/accessibility_delegate.h"
+#include "ash/common/system/tray/system_tray_delegate.h"
 #include "ash/shell.h"
 #include "ash/system/chromeos/devicetype_utils.h"
 #include "ash/system/chromeos/power/battery_notification.h"
 #include "ash/system/chromeos/power/dual_role_notification.h"
 #include "ash/system/date/date_view.h"
 #include "ash/system/system_notifier.h"
-#include "ash/system/tray/system_tray_delegate.h"
 #include "ash/system/tray/tray_constants.h"
 #include "ash/system/tray/tray_utils.h"
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/metrics/histogram.h"
 #include "base/time/time.h"
 #include "grit/ash_resources.h"
 #include "grit/ash_strings.h"
 #include "ui/accessibility/ax_view_state.h"
 #include "ui/base/resource/resource_bundle.h"
@@ skipping 327 matching lines @@
   }
   NOTREACHED();
   return false;
 }
 
 void TrayPower::NotifyUsbNotificationClosedByUser() {
   usb_notification_dismissed_ = true;
 }
 
 }  // namespace ash