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

ash/shelf/shelf_layout_manager.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/shelf/shelf_layout_manager.h"
 
 #include <algorithm>
 #include <cmath>
 #include <cstring>
 #include <string>
 #include <vector>
 
 #include "ash/accelerators/accelerator_commands.h"
 #include "ash/aura/wm_window_aura.h"
 #include "ash/common/ash_switches.h"
 #include "ash/common/material_design/material_design_controller.h"
 #include "ash/common/session/session_state_delegate.h"
 #include "ash/common/shelf/shelf_constants.h"
 #include "ash/common/shelf/wm_shelf_util.h"
 #include "ash/common/shell_window_ids.h"
+#include "ash/common/system/status_area_widget.h"
 #include "ash/common/wm/mru_window_tracker.h"
 #include "ash/common/wm/window_state.h"
 #include "ash/common/wm_root_window_controller.h"
 #include "ash/common/wm_root_window_controller_observer.h"
 #include "ash/common/wm_shell.h"
 #include "ash/root_window_controller.h"
 #include "ash/screen_util.h"
 #include "ash/shelf/shelf.h"
 #include "ash/shelf/shelf_bezel_event_filter.h"
 #include "ash/shelf/shelf_delegate.h"
 #include "ash/shelf/shelf_layout_manager_observer.h"
 #include "ash/shelf/shelf_util.h"
 #include "ash/shelf/shelf_widget.h"
 #include "ash/shell.h"
-#include "ash/system/status_area_widget.h"
 #include "ash/wm/gestures/shelf_gesture_handler.h"
 #include "ash/wm/lock_state_controller.h"
 #include "ash/wm/window_animations.h"
 #include "ash/wm/window_state_aura.h"
 #include "ash/wm/window_util.h"
 #include "ash/wm/workspace_controller.h"
 #include "base/auto_reset.h"
 #include "base/command_line.h"
 #include "base/i18n/rtl.h"
 #include "base/strings/string_number_conversions.h"
@@ skipping 1161 matching lines @@
   if (ash::MaterialDesignController::IsShelfMaterial()) {
     return (state.visibility_state == SHELF_AUTO_HIDE &&
             state.auto_hide_state == SHELF_AUTO_HIDE_SHOWN)
                ? 1.0f
                : 0.0f;
   }
   return (state.visibility_state == SHELF_AUTO_HIDE) ? 1.0f : 0.0f;
 }
 
 }  // namespace ash