Replace scoped_ptr with std::unique_ptr in //ui

ui/events/platform/x11/x11_event_source_glib.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 UI_EVENTS_PLATFORM_X11_X11_EVENT_SOURCE_GLIB_H_
 #define UI_EVENTS_PLATFORM_X11_X11_EVENT_SOURCE_GLIB_H_
 
 #include <stdint.h>
 
+#include <memory>
+
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
 #include "ui/events/events_export.h"
 #include "ui/events/platform/platform_event_source.h"
 #include "ui/events/platform/x11/x11_event_source.h"
 #include "ui/gfx/x/x11_types.h"
 
 typedef struct _GPollFD GPollFD;
 typedef struct _GSource GSource;
 
 namespace ui {
 
@@ skipping 14 matching lines @@
   void OnDispatcherListChanged() override;
 
   void InitXSource(int fd);
 
   X11EventSource event_source_;
 
   // The GLib event source for X events.
   GSource* x_source_ = nullptr;
 
   // The poll attached to |x_source_|.
-  scoped_ptr<GPollFD> x_poll_;
+  std::unique_ptr<GPollFD> x_poll_;
 
   DISALLOW_COPY_AND_ASSIGN(X11EventSourceGlib);
 };
 
 }  // namespace ui
 
 #endif  // UI_EVENTS_PLATFORM_X11_X11_EVENT_SOURCE_GLIB_H_