Split ui/display types into separate module and have Ozone depend on it

ui/ozone/platform/caca/ozone_platform_caca.h

 // Copyright 2014 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.
 
 #ifndef UI_OZONE_PLATFORM_CACA_OZONE_PLATFORM_CACA_H_
 #define UI_OZONE_PLATFORM_CACA_OZONE_PLATFORM_CACA_H_
 
 #include "ui/base/cursor/ozone/cursor_factory_ozone.h"
 #include "ui/ozone/ozone_export.h"
 #include "ui/ozone/ozone_platform.h"
 #include "ui/ozone/platform/caca/caca_connection.h"
 #include "ui/ozone/platform/caca/caca_event_factory.h"
 #include "ui/ozone/platform/caca/caca_surface_factory.h"
 
 namespace ui {
 
 class CacaConnection;
 
 class OzonePlatformCaca : public OzonePlatform {
  public:
   OzonePlatformCaca();
   virtual ~OzonePlatformCaca();
 
   virtual gfx::SurfaceFactoryOzone* GetSurfaceFactoryOzone() OVERRIDE;
   virtual ui::EventFactoryOzone* GetEventFactoryOzone() OVERRIDE;
   virtual ui::InputMethodContextFactoryOzone*
       GetInputMethodContextFactoryOzone() OVERRIDE;
   virtual ui::CursorFactoryOzone* GetCursorFactoryOzone() OVERRIDE;
+  virtual ui::NativeDisplayDelegate* CreateNativeDisplayDelegate() OVERRIDE;
 
  private:
   ui::CacaConnection connection_;
   ui::CacaSurfaceFactory surface_factory_ozone_;
   ui::CacaEventFactory event_factory_ozone_;
   // This creates a minimal input context.
   ui::InputMethodContextFactoryOzone input_method_context_factory_ozone_;
   ui::CursorFactoryOzone cursor_factory_ozone_;
 
   DISALLOW_COPY_AND_ASSIGN(OzonePlatformCaca);
 };
 
 // Constructor hook for use in ozone_platform_list.cc
 OZONE_EXPORT OzonePlatform* CreateOzonePlatformCaca();
 
 }  // namespace ui
 
 #endif  // UI_OZONE_PLATFORM_CACA_OZONE_PLATFORM_CACA_H_