ui: Cleanup class/struct forward declarations

services/ui/ws/display.h

Index: services/ui/ws/display.h
diff --git a/services/ui/ws/display.h b/services/ui/ws/display.h
index d3fb86114f1eec31675a07485a559a1145fd5a05..11811e5ee640635d5131b427f37a51c6ff07892a 100644
--- a/services/ui/ws/display.h
+++ b/services/ui/ws/display.h
@@ -75,9 +75,6 @@ class Display : public PlatformDisplayDelegate,
   // Returns a display::Display corresponding to this ws::Display.
   display::Display ToDisplay() const;
 
-  // Schedules a paint for the specified region in the coordinates of |window|.
-  void SchedulePaint(const ServerWindow* window, const gfx::Rect& bounds);
-
   gfx::Size GetSize() const;
 
   WindowServer* window_server() { return window_server_; }