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

ui/ozone/platform/test/ozone_platform_test.cc

Index: ui/ozone/platform/test/ozone_platform_test.cc
diff --git a/ui/ozone/platform/test/ozone_platform_test.cc b/ui/ozone/platform/test/ozone_platform_test.cc
index 6428c79286e1676b4717c7ae69a293d54685b518..2a848954c4d6d8146eeb24c87bd6c6907e0d656e 100644
--- a/ui/ozone/platform/test/ozone_platform_test.cc
+++ b/ui/ozone/platform/test/ozone_platform_test.cc
@@ -9,6 +9,10 @@
 #include "ui/ozone/ozone_platform.h"
 #include "ui/ozone/ozone_switches.h"
 
+#if defined(OS_CHROMEOS)
+#include "ui/ozone/common/chromeos/native_display_delegate_ozone.h"
+#endif
+
 namespace ui {
 
 OzonePlatformTest::OzonePlatformTest(const base::FilePath& dump_file)
@@ -33,6 +37,15 @@ ui::CursorFactoryOzone* OzonePlatformTest::GetCursorFactoryOzone() {
   return &cursor_factory_ozone_;
 }
 
+#if defined(OS_CHROMEOS)
+scoped_ptr<ui::NativeDisplayDelegate>
+OzonePlatformTest::CreateNativeDisplayDelegate() {
+  return scoped_ptr<ui::NativeDisplayDelegate>(
+      new NativeDisplayDelegateOzone());
+  return scoped_ptr<ui::NativeDisplayDelegate>();
+}
+#endif
+
 OzonePlatform* CreateOzonePlatformTest() {
   CommandLine* cmd = CommandLine::ForCurrentProcess();
   base::FilePath location = base::FilePath("/dev/null");