Replace scoped_ptr with std::unique_ptr in //ui

ui/views/widget/desktop_aura/desktop_window_tree_host_win.cc

Index: ui/views/widget/desktop_aura/desktop_window_tree_host_win.cc
diff --git a/ui/views/widget/desktop_aura/desktop_window_tree_host_win.cc b/ui/views/widget/desktop_aura/desktop_window_tree_host_win.cc
index fa9ea48b50071c9c5110abc17c1fd37933594683..17525593bee8ea61c1cf915dc8853da1a86a917a 100644
--- a/ui/views/widget/desktop_aura/desktop_window_tree_host_win.cc
+++ b/ui/views/widget/desktop_aura/desktop_window_tree_host_win.cc
@@ -4,6 +4,7 @@
 
 #include "ui/views/widget/desktop_aura/desktop_window_tree_host_win.h"
 
+#include "base/memory/ptr_util.h"
 #include "third_party/skia/include/core/SkPath.h"
 #include "third_party/skia/include/core/SkRegion.h"
 #include "ui/aura/client/aura_constants.h"
@@ -170,17 +171,17 @@ void DesktopWindowTreeHostWin::OnNativeWidgetCreated(
   SetWindowTransparency();
 }
 
-scoped_ptr<corewm::Tooltip> DesktopWindowTreeHostWin::CreateTooltip() {
+std::unique_ptr<corewm::Tooltip> DesktopWindowTreeHostWin::CreateTooltip() {
   DCHECK(!tooltip_);
   tooltip_ = new corewm::TooltipWin(GetAcceleratedWidget());
-  return make_scoped_ptr(tooltip_);
+  return base::WrapUnique(tooltip_);
 }
 
-scoped_ptr<aura::client::DragDropClient>
+std::unique_ptr<aura::client::DragDropClient>
 DesktopWindowTreeHostWin::CreateDragDropClient(
     DesktopNativeCursorManager* cursor_manager) {
   drag_drop_client_ = new DesktopDragDropClientWin(window(), GetHWND());
-  return make_scoped_ptr(drag_drop_client_);
+  return base::WrapUnique(drag_drop_client_);
 }
 
 void DesktopWindowTreeHostWin::Close() {