Make LogoutButtonTray a regular View

ash/BUILD.gn

 # 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.
 
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//testing/test.gni")
 import("//ui/base/ui_features.gni")
 
 # Historical note: Ash shipped on Windows for a couple years to support
@@ skipping 506 matching lines @@
     "system/tray/system_tray_notifier.cc",
     "system/tray/system_tray_notifier.h",
     "system/tray/throbber_view.cc",
     "system/tray/throbber_view.h",
     "system/tray/tray_background_view.cc",
     "system/tray/tray_background_view.h",
     "system/tray/tray_bubble_wrapper.cc",
     "system/tray/tray_bubble_wrapper.h",
     "system/tray/tray_constants.cc",
     "system/tray/tray_constants.h",
+    "system/tray/tray_container.cc",
+    "system/tray/tray_container.h",
     "system/tray/tray_details_view.cc",
     "system/tray/tray_details_view.h",
     "system/tray/tray_event_filter.cc",
     "system/tray/tray_event_filter.h",
     "system/tray/tray_image_item.cc",
     "system/tray/tray_image_item.h",
     "system/tray/tray_item_more.cc",
     "system/tray/tray_item_more.h",
     "system/tray/tray_item_view.cc",
     "system/tray/tray_item_view.h",
@@ skipping 952 matching lines @@
     "//content/public/app:both",
     "//device/bluetooth",
   ]
 
   data_deps = [
     "//ash/strings:ash_test_strings",
     "//ash/resources:ash_test_resources_with_content_100_percent",
     "//ash/resources:ash_test_resources_200_percent",
   ]
 }