Move gfx::Display/Screen to display::Display/Screen in aura/events

ui/aura/window.h

Index: ui/aura/window.h
diff --git a/ui/aura/window.h b/ui/aura/window.h
index 38cd39fad6176bd0992df620ecd2997f2c72cc7d..b61881cc9d4c56ed6c6ed219415b70e00bdfd730 100644
--- a/ui/aura/window.h
+++ b/ui/aura/window.h
@@ -32,6 +32,13 @@
 
 namespace gfx {
 class Display;
+}
+
+namespace display {
+using Display = gfx::Display;
+}
+
+namespace gfx {
 class Transform;
 class Vector2d;
 }
@@ -172,7 +179,7 @@ class AURA_EXPORT Window : public ui::LayerDelegate,
   // Changes the bounds of the window in the screen coordintates.
   // If present, the window's parent's LayoutManager may adjust the bounds.
   void SetBoundsInScreen(const gfx::Rect& new_bounds_in_screen_coords,
-                         const gfx::Display& dst_display);
+                         const display::Display& dst_display);
 
   // Returns the target bounds of the window. If the window's layer is
   // not animating, it simply returns the current bounds.