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

ui/ozone/platform/test/ozone_platform_test.h

 // Copyright 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.
 
 #ifndef UI_OZONE_PLATFORM_TEST_OZONE_PLATFORM_TEST_H_
 #define UI_OZONE_PLATFORM_TEST_OZONE_PLATFORM_TEST_H_
 
 #include "base/files/file_path.h"
 #include "ui/base/cursor/ozone/cursor_factory_ozone.h"
 #include "ui/events/ozone/evdev/event_factory_evdev.h"
 #include "ui/gfx/ozone/impl/file_surface_factory.h"
 #include "ui/ozone/ozone_platform.h"
 
 namespace ui {
 
 // OzonePlatform for testing
 //
 // This platform dumps images to a file for testing purposes.
 class OzonePlatformTest : public OzonePlatform {
  public:
   OzonePlatformTest(const base::FilePath& dump_file);
   virtual ~OzonePlatformTest();
 
   virtual gfx::SurfaceFactoryOzone* GetSurfaceFactoryOzone() OVERRIDE;
   virtual ui::EventFactoryOzone* GetEventFactoryOzone() OVERRIDE;
   virtual ui::InputMethodContextFactoryOzone*
       GetInputMethodContextFactoryOzone() OVERRIDE;
   virtual ui::CursorFactoryOzone* GetCursorFactoryOzone() OVERRIDE;
+#if defined(OS_CHROMEOS)
+  virtual scoped_ptr<ui::NativeDisplayDelegate>
+      CreateNativeDisplayDelegate() OVERRIDE;
+#endif
 
  private:
   gfx::FileSurfaceFactory surface_factory_ozone_;
   ui::EventFactoryEvdev event_factory_ozone_;
   ui::InputMethodContextFactoryOzone input_method_context_factory_ozone_;
   ui::CursorFactoryOzone cursor_factory_ozone_;
 
   DISALLOW_COPY_AND_ASSIGN(OzonePlatformTest);
 };
 
 // Constructor hook for use in ozone_platform_list.cc
 OzonePlatform* CreateOzonePlatformTest();
 
 }  // namespace ui
 
 #endif  // UI_OZONE_PLATFORM_TEST_OZONE_PLATFORM_TEST_H_