mash: Move StatusTray and StatusAreaWidget to //ash/common

chrome/browser/ui/ash/multi_user/user_switch_util.cc

 // Copyright 2014 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/ui/ash/multi_user/user_switch_util.h"
 
 #include "ash/common/system/chromeos/screen_security/screen_tray_item.h"
+#include "ash/common/system/tray/system_tray.h"
 #include "ash/shell.h"
 #include "ash/strings/grit/ash_strings.h"
-#include "ash/system/tray/system_tray.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/views/controls/label.h"
 #include "ui/views/layout/grid_layout.h"
 #include "ui/views/widget/widget.h"
 #include "ui/views/window/dialog_delegate.h"
 
 namespace {
 
 // Default width/height of the dialog.
@@ skipping 165 matching lines @@
 
 bool TestAndTerminateDesktopCastingWarningForTest(bool accept) {
   if (!instance_for_test)
     return false;
   if (accept)
     instance_for_test->Accept();
   delete instance_for_test->GetWidget()->GetNativeWindow();
   CHECK(!instance_for_test);
   return true;
 }