Convert //ash from scoped_ptr to std::unique_ptr

ash/wm/overview/window_selector.h

 // Copyright 2013 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_WM_OVERVIEW_WINDOW_SELECTOR_H_
 #define ASH_WM_OVERVIEW_WINDOW_SELECTOR_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
+#include <memory>
 #include <set>
 #include <vector>
 
 #include "ash/ash_export.h"
 #include "base/compiler_specific.h"
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
 #include "base/memory/scoped_vector.h"
 #include "base/time/time.h"
 #include "ui/aura/window_observer.h"
 #include "ui/aura/window_tracker.h"
 #include "ui/events/event_handler.h"
 #include "ui/gfx/display_observer.h"
 #include "ui/views/controls/textfield/textfield_controller.h"
 #include "ui/wm/public/activation_change_observer.h"
 
 namespace aura {
@@ skipping 147 matching lines @@
 
   // The number of items in the overview.
   size_t num_items_;
 
   // Indicates if we are showing the selection widget.
   bool showing_selection_widget_;
 
   // Window text filter widget. As the user writes on it, we filter the items
   // in the overview. It is also responsible for handling overview key events,
   // such as enter key to select.
-  scoped_ptr<views::Widget> text_filter_widget_;
+  std::unique_ptr<views::Widget> text_filter_widget_;
 
   // The current length of the string entered into the text filtering textfield.
   size_t text_filter_string_length_;
 
   // The number of times the text filtering textfield has been cleared of text
   // during this overview mode session.
   size_t num_times_textfield_cleared_;
 
   // Tracks whether minimized windows are currently being restored for overview
   // mode.
   bool restoring_minimized_windows_;
 
   DISALLOW_COPY_AND_ASSIGN(WindowSelector);
 };
 
 }  // namespace ash
 
 #endif  // ASH_WM_OVERVIEW_WINDOW_SELECTOR_H_