ozone: Add OzoneWindowFactory & OzoneWindow

ui/ozone/platform/dri/ozone_platform_dri.cc

Index: ui/ozone/platform/dri/ozone_platform_dri.cc
diff --git a/ui/ozone/platform/dri/ozone_platform_dri.cc b/ui/ozone/platform/dri/ozone_platform_dri.cc
index ce5587b1d841db9ec5ece7c407c017fa0bdcc31a..a9a5ae622cf916605d040086b84e7d716c7ea8fe 100644
--- a/ui/ozone/platform/dri/ozone_platform_dri.cc
+++ b/ui/ozone/platform/dri/ozone_platform_dri.cc
@@ -11,7 +11,8 @@ namespace ui {
 
 OzonePlatformDri::OzonePlatformDri()
     : cursor_factory_ozone_(&surface_factory_ozone_),
-      event_factory_ozone_(&cursor_factory_ozone_) {}
+      event_factory_ozone_(&cursor_factory_ozone_),
+      window_factory_ozone_(&surface_factory_ozone_) {}
 
 OzonePlatformDri::~OzonePlatformDri() {}
 
@@ -32,6 +33,10 @@ ui::CursorFactoryOzone* OzonePlatformDri::GetCursorFactoryOzone() {
   return &cursor_factory_ozone_;
 }
 
+ui::WindowFactoryOzone* OzonePlatformDri::GetWindowFactoryOzone() {
+  return &window_factory_ozone_;
+}
+
 OzonePlatform* CreateOzonePlatformDri() { return new OzonePlatformDri; }
 
 }  // namespace ui