[Cleanup] Screen cleanup

ash/display/event_transformation_handler.cc

 // Copyright (c) 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.
 
 #include "ash/display/event_transformation_handler.h"
 
 #include <cmath>
 
-#include "ash/screen_ash.h"
 #include "ash/shell.h"
 #include "ash/wm/coordinate_conversion.h"
 #include "ash/wm/window_util.h"
 #include "ui/aura/root_window.h"
 #include "ui/aura/window.h"
 #include "ui/compositor/dip_util.h"
 #include "ui/events/event.h"
 #include "ui/gfx/display.h"
 #include "ui/gfx/screen.h"
 
@@ skipping 66 matching lines @@
   }
 
   float area_ratio_sqrt = std::sqrt(area_ratio_map.begin()->second);
   event->set_radius_x(event->radius_x() * area_ratio_sqrt);
   event->set_radius_y(event->radius_y() * area_ratio_sqrt);
 }
 #endif  // defined(OS_CHROMEOS)
 
 }  // namespace internal
 }  // namespace ash