Re-write many calls to WrapUnique() with MakeUnique()

ash/mus/bridge/wm_shell_mus.cc

Index: ash/mus/bridge/wm_shell_mus.cc
diff --git a/ash/mus/bridge/wm_shell_mus.cc b/ash/mus/bridge/wm_shell_mus.cc
index dc51f676f241efb874692223727cd8e1a9dc5fca..0c7e789d5878a75efa5a9f76e5ac4ad2a23e4824 100644
--- a/ash/mus/bridge/wm_shell_mus.cc
+++ b/ash/mus/bridge/wm_shell_mus.cc
@@ -317,8 +317,8 @@ void WmShellMus::ShowContextMenu(const gfx::Point& location_in_screen,
 std::unique_ptr<WindowResizer> WmShellMus::CreateDragWindowResizer(
     std::unique_ptr<WindowResizer> next_window_resizer,
     wm::WindowState* window_state) {
-  return base::WrapUnique(
-      new DragWindowResizer(std::move(next_window_resizer), window_state));
+  return base::MakeUnique<DragWindowResizer>(std::move(next_window_resizer),
+                                             window_state);
 }
 
 std::unique_ptr<WindowCycleEventFilter>