VaapiVideoAccelerator: make Vaapi accelerator work with ozone

ui/ozone/platform/dri/ozone_platform_gbm.cc

Index: ui/ozone/platform/dri/ozone_platform_gbm.cc
diff --git a/ui/ozone/platform/dri/ozone_platform_gbm.cc b/ui/ozone/platform/dri/ozone_platform_gbm.cc
index b23b2d49d932c30b2533f8fcfceba8051d7a7d3d..2a10ed71a1c26541010ce70a7897366de3ab4322 100644
--- a/ui/ozone/platform/dri/ozone_platform_gbm.cc
+++ b/ui/ozone/platform/dri/ozone_platform_gbm.cc
@@ -130,7 +130,8 @@ class OzonePlatformGbm : public OzonePlatform {
     vt_manager_.reset(new VirtualTerminalManager());
     // Needed since the browser process creates the accelerated widgets and that
     // happens through SFO.
-    surface_factory_ozone_.reset(new GbmSurfaceFactory(use_surfaceless_));
+    if (!surface_factory_ozone_)
+      surface_factory_ozone_.reset(new GbmSurfaceFactory(use_surfaceless_));
     device_manager_ = CreateDeviceManager();
     gpu_platform_support_host_.reset(new GpuPlatformSupportHostGbm());
     cursor_factory_ozone_.reset(new BitmapCursorFactoryOzone);