mash: Migrate //ash/system/toast to WM common types

ash/common/system/toast/toast_data.h

 // Copyright 2016 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.
 
-#ifndef ASH_SYSTEM_TOAST_TOAST_DATA_H_
-#define ASH_SYSTEM_TOAST_TOAST_DATA_H_
+#ifndef ASH_COMMON_SYSTEM_TOAST_TOAST_DATA_H_
+#define ASH_COMMON_SYSTEM_TOAST_TOAST_DATA_H_
 
 #include <string>
 
 #include "ash/ash_export.h"
 
 namespace ash {
 
 struct ASH_EXPORT ToastData {
   // "|duration_ms| == -1" means the toast view should be displayed until the
   // dismiss button is clicked.
   static const int32_t kInfiniteDuration = -1;
 
   ToastData(std::string id,
             std::string text,
             int32_t duration_ms,
             std::string dismiss_text);
   ToastData(const ToastData& other);
 
   std::string id;
   std::string text;
   int32_t duration_ms;
   std::string dismiss_text;
 };
 
 }  // namespace ash
 
-#endif  // ASH_SYSTEM_TOAST_TOAST_DATA_H_
+#endif  // ASH_COMMON_SYSTEM_TOAST_TOAST_DATA_H_