Convert //ash from scoped_ptr to std::unique_ptr

ash/system/date/date_view.h

 // 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.
 
 #ifndef ASH_SYSTEM_DATE_DATE_VIEW_H_
 #define ASH_SYSTEM_DATE_DATE_VIEW_H_
 
+#include <memory>
+
 #include "ash/ash_export.h"
 #include "ash/system/date/tray_date.h"
 #include "ash/system/tray/actionable_view.h"
 #include "base/i18n/time_formatting.h"
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
 #include "base/timer/timer.h"
 #include "ui/views/view.h"
 
 namespace views {
 class Label;
 }
 
 namespace ash {
 namespace tray {
 
@@ skipping 92 matching lines @@
   bool PerformAction(const ui::Event& event) override;
 
   // Overridden from views::View.
   bool OnMousePressed(const ui::MouseEvent& event) override;
 
   void SetBorderFromLayout(TrayDate::ClockLayout clock_layout);
   void SetupLabels();
   void SetupLabel(views::Label* label);
 
   // Label text used for the normal horizontal shelf.
-  scoped_ptr<views::Label> horizontal_label_;
+  std::unique_ptr<views::Label> horizontal_label_;
 
   // The time label is split into two lines for the vertical shelf.
-  scoped_ptr<views::Label> vertical_label_hours_;
-  scoped_ptr<views::Label> vertical_label_minutes_;
+  std::unique_ptr<views::Label> vertical_label_hours_;
+  std::unique_ptr<views::Label> vertical_label_minutes_;
 
   base::HourClockType hour_type_;
 
   DISALLOW_COPY_AND_ASSIGN(TimeView);
 };
 
 }  // namespace tray
 }  // namespace ash
 
 #endif  // ASH_SYSTEM_DATE_DATE_VIEW_H_