ozone: dri: Fix undefined references in DRI platform GN build

ui/ozone/platform/dri/dri_surface.h

Index: ui/ozone/platform/dri/dri_surface.h
diff --git a/ui/ozone/platform/dri/dri_surface.h b/ui/ozone/platform/dri/dri_surface.h
index 9c439e344c08afe1bd136ca1c5c4e440d61397a0..6ba581e5f2ce3f354a7873fe29299ad7ddf92843 100644
--- a/ui/ozone/platform/dri/dri_surface.h
+++ b/ui/ozone/platform/dri/dri_surface.h
@@ -9,6 +9,7 @@
 #include "ui/gfx/geometry/rect.h"
 #include "ui/gfx/geometry/size.h"
 #include "ui/gfx/skia_util.h"
+#include "ui/ozone/ozone_export.h"
 #include "ui/ozone/public/surface_ozone_canvas.h"
 
 class SkSurface;
@@ -20,7 +21,7 @@ class DriWindowDelegate;
 class DriWrapper;
 class HardwareDisplayController;
 
-class DriSurface : public SurfaceOzoneCanvas {
+class OZONE_EXPORT DriSurface : public SurfaceOzoneCanvas {
  public:
   DriSurface(DriWindowDelegate* window_delegate, DriWrapper* dri);
   ~DriSurface() override;