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

ash/common/system/toast/toast_manager.cc

 // 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.
 
-#include "ash/system/toast/toast_manager.h"
+#include "ash/common/system/toast/toast_manager.h"
+
+#include <algorithm>
 
 #include "base/bind.h"
 #include "base/location.h"
 #include "base/threading/thread_task_runner_handle.h"
 
 namespace ash {
 
 namespace {
 
 // Minimum duration for a toast to be visible (in millisecond).
@@ skipping 70 matching lines @@
         base::TimeDelta::FromMilliseconds(duration_ms));
   }
 }
 
 void ToastManager::OnDurationPassed(int toast_number) {
   if (overlay_ && serial_ == toast_number)
     overlay_->Show(false);
 }
 
 }  // namespace ash