Convert //ash from scoped_ptr to std::unique_ptr

ash/wm/cursor_manager_chromeos.h

 // Copyright 2014 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_CURSOR_MANAGER_CHROMEOS_H_
 #define ASH_WM_CURSOR_MANAGER_CHROMEOS_H_
 
+#include <memory>
+
 #include "ash/ash_export.h"
 #include "base/compiler_specific.h"
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
 #include "ui/wm/core/cursor_manager.h"
 #include "ui/wm/core/native_cursor_manager_delegate.h"
 
 namespace ui {
 class KeyEvent;
 }
 
 namespace wm {
 class NativeCursorManager;
 }
 
 namespace ash {
 
 // This class overrides the cursor hiding behaviour on ChromeOS. The cursor is
 // hidden on certain key events only if the accessibility keyboard is not
 // enabled.
 class ASH_EXPORT CursorManager : public ::wm::CursorManager {
  public:
-  explicit CursorManager(
-      scoped_ptr< ::wm::NativeCursorManager> delegate);
+  explicit CursorManager(std::unique_ptr<::wm::NativeCursorManager> delegate);
   ~CursorManager() override;
 
   // aura::client::CursorClient:
   bool ShouldHideCursorOnKeyEvent(const ui::KeyEvent& event) const override;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(CursorManager);
 };
 
 }  // namespace ash
 
 #endif  // ASH_WM_CURSOR_MANAGER_CHROMEOS_H_